You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket from Phoenix, AZ - PHX. can you please help me in booking a flight ticket with the fare of 200?

ASSISTANT: Sure, may I know your journey dates?

USER: I will fly on 03/21 and arrival on 03/23.

ASSISTANT: May I know your destination airport code?

USER: My destination airport code is Houston, TX - IAH.

ASSISTANT: May I know your name please?

USER: My name is Dennis Collins.

ASSISTANT: Please wait for a moment, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, I found a Spirit airline, flight number: 1003, price: 100 with one connection.

USER: You can confirm my ticket with this airline.

ASSISTANT: Shall I proceed with this booking? Ok, your flight ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thanks for choosing us.