You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Stephanie Phillips here. I would like to visit Washington for a business trip, can you please reserve a flight ticket from JFK to IAD?

ASSISTANT: Sure, may I know your preferable travel dates?

USER: Ok, my departure is on Jan 06 and please book my return ticket also on Jan 08.

ASSISTANT: Please allow me a moment.

USER: Sure, take your time but try to bring a economy class flight.

ASSISTANT: As per your dates, there is no flight moving towards your location.

USER: Oh! Sad to hear that. Anyway, thank you for the information.

ASSISTANT: You are most welcome and thank you for reaching us.