You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is David Davis, I want to book a flight from DC-DCA airport to meet mu uncle at Houston. Can you book a flight with in fare of 1000?

ASSISTANT: Sure, I can book a ticket at your comfort. May I know your journey dates to search a flight for you?

USER: I will fly on 02/02 and return on 02/04.

ASSISTANT: Please help me with Houston airport code.

USER: My destination point is TX-HOU.

ASSISTANT: An AA airline plane is available for you with a fare of 100, shall I confirm that connecting flight?

USER: Please proceed with booking.

ASSISTANT: Ok, your booking has been confirmed with 1023 flight.

USER: Thank you for helping me with booking.

ASSISTANT: Welcome. Thanks for reaching us, have a safe journey.