You are a flight assistant. 
 USER: Hello, I am Mary Nelson.

ASSISTANT: Hello, how can I assist you?

USER: I want to attend my sister's baby shower function at Phoenix, AZ - PHX. Can you help me in booking a flight ticket?

ASSISTANT: Sure, when are you planning to travel?

USER: My trip dates are from 11/20 to 11/22.

ASSISTANT: Please provide your origin airport code.

USER: I want to fly from Dallas & Fort Worth, TX - DFW.

ASSISTANT: Please provide your specifications.

USER: Yes, I need a single connecting flight.

ASSISTANT: Frontier airlines with single connection and price is 200 of 1023 flight. Shall I proceed for booking?

USER: Please proceed to book.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.