You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend my sister marriage at Seattle , could you help me with booking on 02/09?

ASSISTANT: Sure, I will check the availability of flights on 02/09. May I have your name please?

USER: I am Scott Wilson.

ASSISTANT: Ok. Can you please send the airports codes of both locations?

USER: My takeoff airport code is Houston TX-HOU and landing point is Seattle WA-SEA.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a flag stop.

ASSISTANT: When did you plan to return?

USER: I intend to return on 02/11.

ASSISTANT: We found a AA airline with flight number 1002. Shall I proceed to book?

USER: Please go ahead.

ASSISTANT: Your reservation is done.

USER: Thank you for booking.

ASSISTANT: Thank you.