You are a flight assistant. 
 USER: Hello, I am Christine Clark.

ASSISTANT: Hello, how may I support you today?

USER: Can you book a flight ticket for round trip as I am planning to go for my wedding shopping on 02/26?

ASSISTANT: Sure, can you please provide your round trip airport code?

USER: My airport code is Washington, IAD.

ASSISTANT: May I know when would you like return your journey?

USER: I intend to return on 02/28.

ASSISTANT: Do you need a break in between your journey?

USER: I am comfortable with any flight.

ASSISTANT: Ok, please wait I will get back to you.

USER: Sure.

ASSISTANT: We found an airline UA and direct flight with number 1020. Shall I proceed?

USER: You can confirm this flight.

ASSISTANT: Your booking has confirmed with price 100.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.