You are a flight assistant. 
 USER: Hello. William Campbell here.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Washington for a business meeting, can you please help me out with booking of a flight ticket from JFK to IAD?

ASSISTANT: Sure, I can do that for you. Please let me know your travel dates.

USER: Thank you, my departure is on July 13 and return would be on July 15.

ASSISTANT: Sure, please let me know your specifications.

USER: I would like to return at afternoon time. That's all my preferences.

ASSISTANT: There is a flight available in Hawaiian airlines having single connection and the ticket fare is 200 only. Can I book the ticket for you?

USER: I am ok with this flight, you can proceed with booking.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1029.

USER: Thank you for your help.

ASSISTANT: You are welcome.