You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Wright.

ASSISTANT: How can I assist you today?

USER: Can you please book a flight ticket from DCA to PHX?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Thank you, I want to take off on 09/20 and please confirm my return ticket also on 09/22.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Please confirm this flight ticket for me.

ASSISTANT: Your ticket is booked. The flight number is 1018 and the airline is UA.

USER: Thank you for your service.

ASSISTANT: Welcome, have a great day.