You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Timothy Young want to shoot my film in Oakland, can you book a flight within the fare of 500?

ASSISTANT: Sure. Please specify travelling codes?

USER: Sure, my travel codes are SFO and OAK.

ASSISTANT: May I know your travelling dates?

USER: Yes, my journey will be on 01/21 and 01/23.

ASSISTANT: Ticket can be booked with price 100, connections 1. Flight number 1000 and airline AA.

USER: Ok, go on with the booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.