You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Timothy Martin this side, I am looking to start a hotel business at Houston. Can you help me to book a ticket?

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

USER: I am planning to start on 01/27 and return on 01/29.

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

USER: My airport codes are LGA and HOU.

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

USER: Ensure that its price is within 500.

ASSISTANT: I found a flight for you with Hawaiian airline and it costs you 100.

USER: Please book it.

ASSISTANT: Shall I proceed? Your ticket has been booked with 1029 flight number.

USER: Thank you for booking instantly.

ASSISTANT: Welcome. Thank you for choosing us, have a safe flight.

USER: You are welcome.