You are a flight assistant. 
 USER: Hello, I am Steven Thompson.

ASSISTANT: Hello Steven, how can I aid you today?

USER: I want to book a flight ticket to Houston to submit my research record at Houston University from NY - LGA. Can you please help me in booking a flight within a fare of 500?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: My journey dates are on 06/24 to 06/26.

ASSISTANT: Can you please provide your destination airport code?

USER: Sure, my destination airport code is TX - IAH.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Sure.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed?

USER: Sure, you can proceed.

ASSISTANT: Your ticket has been booked with 1005 flight number.

USER: Thank you so much.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.