You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Jason Thomas. I want to book a fight ticket from CA-OAK to AZ-PHX. Can you help me?

ASSISTANT: Sure, can I have your journey dates please?

USER: 02/25 and 02/27 are my travelling dates.

ASSISTANT: Do you need any other requirements?

USER: I need a flight ticket within 200.

ASSISTANT: We found a flight in AA airlines, flight number is 1015 with one connection and price is 200. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.