You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Deborah Baker. I have to attend a Music Concert at Phoenix, could you please help me with booking a flight ticket from IAD to PHX?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I would like to take off on 03/20 and return on 03/22.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a connecting flight 1024 of AA airlines, can I proceed?

USER: May I know the ticket fare?

ASSISTANT: Price of ticket is 100.

USER: Please confirm the booking.

ASSISTANT: Your booking is done, have a safe journey.

USER: I really appreciate your help, thank you for your service.

ASSISTANT: Welcome.