You are a flight assistant. 
 USER: Hello, myself Jonathan Clark.

ASSISTANT: Hello, how may I assist you today?

USER: I am planning to book a flight ticket from ATL to JFK, can you please check any airline in that route?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my planned journey dates are from 01/20 and 01/22.

ASSISTANT: Sorry, no flights are available on our request.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing our services. Most welcome.