You are a flight assistant. 
 USER: Hello, I am Larry Barker.

ASSISTANT: Hello, how can I serve you today?

USER: I would like to visit Yosemite Adventure at Houston, can you please book me a ticket?

ASSISTANT: Sure, may I know your price limit?

USER: I can afford 200.

ASSISTANT: Please share your source and destination codes.

USER: Sure, from PHX to HOU.

ASSISTANT: Can you please provide your planned travel dates?

USER: I have planned to travel from 03/01 to 03/03.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found an airline: AA, flight number: 1007 with a single connection and price is 100. Shall I proceed to booking?

USER: Yes, you can.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thanks for choosing us.