You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I need to schedule my trip to travel Seattle. Can you please help me in reserving the ticket from IAD to SEA?

ASSISTANT: Sure, may I know your itinerary dates?

USER: I am planning my trip on May 31 and again I will return back on June 2.

ASSISTANT: At what time do you want to travel?

USER: I would like to depart in the afternoon.

ASSISTANT: May I know your connection limit?

USER: I am comfort to travel in single connection flight.

ASSISTANT: May I know your name?

USER: Myself Rebecca Hill.

ASSISTANT: Sorry Rebecca Hill, no flights are available from IAD in the afternoon.

USER: Not a big problem, anyhow thank you very much for your kind information.

ASSISTANT: Thank you for choosing us.