What is Sarah's objective line for line she?

"Richard and Sarah are married, at the same time Sarah is role-playing the sex worker that sleeps with her husband and Richard is also role-playing Sarah's lover

RICHARD (amiably). Is your lover coming today?

SARAH. Mmnn.

RICHARD. What time?

SARAH. Three.

RICHARD. Will you be going out... or staying in?

SARAH. Oh... I think we'll stay in.

RICHARD. I thought you wanted to go to that exhibition.

SARAH. I did, yes... but I think I'd prefer to stay in with

him today. RICHARD. Mmn-hmmn. Well, I must be off. yoes avend

He goes to the hall and puts on his bowler hat.

RICHARD. Will he be staying long do you think?

SARAH. Mmmnnn

RICHARD. About... six, then.

SARAH. Yes.

RICHARD. Have a pleasant afternoon.

SARAH. Mmnn.

RICHARD. Bye-bye.

SARAH. Bye."

Sarah's objective in this scene is to maintain the facade of her role-playing as a sex worker, while also subtly indicating to Richard that she wants to spend time with her lover instead of him. She uses non-committal responses and avoids giving too much information to keep up the charade. Ultimately, her objective is to prioritize her relationship with her lover over her marriage with Richard.