You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Martinez here.

ASSISTANT: How can I assist you today?

USER: I'm planning to visit Charlotte, can you please help me in booking the ticket from IAD to CLT?

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

USER: Sure, my planned departure and return travel dates are 06/28 and 06/30.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

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

USER: That's fine, you can proceed for booking the ticket.

ASSISTANT: Your ticket is booked. The flight number is 1028 and the airline is UA.

USER: Thank you so much for your help in booking the ticket.

ASSISTANT: Welcome, have a great day.