Can you please check if the following sentences are all right?

Thank yo very much in advance.

1) We’d like to reserve three seats (for two adults and a child) on the train from Berlin to Bremen leaving at 13.30 on 11th August.
2) We can’t complete the reservation on line because they say the password we have chosen is "too weak".
3) Can you please suggest us a suitable password?

1) We’d like to reserve three seats (for two adults and a child) on the train from Berlin to Bremen leaving at 13.30 on 11th August.

The parentheses are not needed. If 1330 is military time, it does not require a decimal point. In the United States, it would be August 11th.

2) We can’t complete the reservation on line (comma) because they say the password we have chosen is "too weak". "Online" is one word.

3) Can you please suggest us a suitable password? Delete "us" or use "for us" at the end of the sentence.

To check if the sentences are correct, we will analyze each sentence individually:

1) We’d like to reserve three seats (for two adults and a child) on the train from Berlin to Bremen leaving at 13.30 on 11th August.

This sentence is grammatically correct and conveys the intended meaning. It is a request to reserve three seats on a train from Berlin to Bremen, indicating the number of passengers and the departure time.

To verify this sentence, you can confirm the train schedules and availability on the desired date and time from reliable sources such as the official website of the train operator or by contacting customer service.

2) We can’t complete the reservation online because they say the password we have chosen is "too weak".

This sentence is also grammatically correct. It mentions the reason for being unable to complete the reservation online, which is the selection of a password that is considered weak.

To check the validity of this sentence, you would need to attempt to complete the reservation online, ensuring that the password you have chosen meets the required strength criteria specified by the website or platform you are using. If you continue to experience issues, you may need to contact customer support for further assistance.

3) Can you please suggest us a suitable password?

This sentence is grammatically correct and appropriately requests a suggestion for a suitable password.

To get a suitable password suggestion, you can follow common password guidelines, such as including a mix of letters, numbers, and special characters, using a combination of uppercase and lowercase letters, and avoiding easily guessable patterns or personal information. You can also utilize password generators available online or use a password manager that provides secure password suggestions.

Overall, the sentences are grammatically correct, but the accuracy of the information within them can only be confirmed through the appropriate verification steps described above.