You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Washington, can you please reserve me a flight ticket from DFW to IAD?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My planned dates of journey are Aug 20 and Aug 22.

ASSISTANT: May I know your name please?

USER: My name is Anna Robinson.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: May I know your preferable time for journey?

USER: I am ok with any airlines.

ASSISTANT: May I know your connection limit please?

USER: I prefer connecting flight for this trip.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a direct flight of fare 100 with economy class in Southwest airline, shall I proceed for booking?

USER: Please reserve my ticket in this flight.

ASSISTANT: Your ticket has been confirmed with flight number 1003.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.