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

ASSISTANT: Hello, how may I assist you?

USER: I am having an audition at Philadelphia. Can you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to leave by 10/15 and return back on 10/17.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights from HOU to PHL.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: I can afford up-to 200.

ASSISTANT: I found a flight for you with Delta airline and it costs you 200. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with 1009 flight number.

USER: Thank you.

ASSISTANT: Welcome, thank you for choosing our services.

USER: You are welcome.