You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I have a live music concert at Detroit, please help me in booking a ticket from Phoenix.

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: I am willing to travel on Apr 17 and return on Apr 19.

ASSISTANT: May I have your nearby airport codes?

USER: I choose PHX in Phoenix and DTW in Detroit.

ASSISTANT: Do you have any limitations?

USER: I need a connecting flight for my journey.

ASSISTANT: There is a connecting flight available with UA airline which offers low cost tickets, shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: May I know your name please?

USER: My name is Carolyn Garcia.

ASSISTANT: Your booking is done with flight number 1009. Happy journey.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.