You are a flight assistant. 
 USER: Hello, myself William Lopez.

ASSISTANT: Hello Lopez, how can I assist you today?

USER: I have to meet my brother on his birthday, can you please help me to book my flight ticket from PHX to IAH?

ASSISTANT: Sure, can you please let me know your travel dates?

USER: I will depart on 06/28 and return back on 06/30.

ASSISTANT: There is a flight available with JetBlue airlines and the ticket fare is 100 only. Is it ok for you?

USER: That's perfect! You can proceed for booking the ticket.

ASSISTANT: Your ticket is confirmed successfully with the flight-1015.

USER: Thank you very much for your help.

ASSISTANT: Thank you for choosing us and have a nice day.