You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you now?

USER: I am Larry Allen, please book a ticket on 12/01 and return ticket on 12/03.

ASSISTANT: Sure, may I know your budget for flight ticket?

USER: My budget is 5000.

ASSISTANT: Please share me your airport codes?

USER: My journey points are from LAX to BOS.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1009 of airline Spirit and fare is 100.

USER: You can proceed.

ASSISTANT: Sure. Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.