You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I need to buy a plane ticket from LAX to DCA. Please help me in that.

ASSISTANT: Sure, can you please mention your connection limit?

USER: I need  a single connecting flight.

ASSISTANT: May I know, on which dates you prefer to travel?

USER: My journey dates are from Dec, 25 to Dec, 27.

ASSISTANT: Are there any more specifications do you need?

USER: No.

ASSISTANT: May I know your name please?

USER: John Mitchell.

ASSISTANT: There is a flight found matching your specifications, American as airlines, flight number 1022, and the fare 200 in economy class.

USER: Please proceed for booking.

ASSISTANT: Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.