You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to visit New York next month for my film shooting purpose, can you please book a flight ticket from Washington?

ASSISTANT: Sure, we are gleeful to help you.

USER: Thanks.

ASSISTANT: Can you please provide your nearest airport codes for booking?

USER: I want to fly from IAD airport and destination airport is JFK.

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: My departure date is 09/28 and please book my return ticket also on 09/30.

ASSISTANT: On whose name I have to book this flight ticket?

USER: Please book this flight ticket under my name Michael Thompson.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: Sorry to inform you that, there are no flights moving to your location with your requested dates of travelling.

USER: It's ok no problem, I will go with another airline. Thank you for your information.

ASSISTANT: Thank you for approaching us, have a great day.