You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Brian Moore, planning to visit Philadelphia. Can you please book me the ticket from IAD to PHL?

ASSISTANT: Sure, may I know your dates of travel please?

USER: My planned dates of journey are from 02/14 to 02/16.

ASSISTANT: Please wait for a mean while.

USER: Sure, I will wait for your response.

ASSISTANT: There is a flight with the connecting flight of fare 200 and the airline is UA, are you ok with this booking?

USER: Please book my ticket with this airlines.

ASSISTANT: Ok, your ticket has been reserved with the flight number 1008.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe flight.