You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Stephen Lewis want to shoot my film in Oakland, can you book a ticket within the fare of 500?

ASSISTANT: Sure, I am here to help you with that. Can you help me with your planned journey dates?

USER: Sure, my travelling dates will be 11/27 and 11/29.

ASSISTANT: Let me know your travelling airport codes?

USER: Yes, I want to fly from BOS to OAK.

ASSISTANT: There is a flight-1012 of UA airlines, shall I proceed?

USER: Yes, proceed with my booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.