You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Brandon Wright. I have to attend my sister's wedding at Phoenix, could you please help me with booking a flight ticket?

ASSISTANT: Sure Wright, can you provide me your preferred travel dates?

USER: I would like to take off on 02/21 and return on 02/23.

ASSISTANT: Thank you Wright for providing your travel dates. May I know your travel airport codes too?

USER: My nearest source airport code is IAH and destination airport code is PHX.

ASSISTANT: There is a flight available with 1 connecting flight and the airlines is UA. Do you want me to book it for you?

USER: Please proceed with the booking if the ticket fare is less than 500.

ASSISTANT: Yes Wright, the booking is confirmed and the price is 100.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing your agency. Have a safe journey.