You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Daniel Roberts.

ASSISTANT: How can I guide you today?

USER: I am planning to visit New York to meet brother, can you help me for booking a flight ticket?

ASSISTANT: Sure, I can help you. Can you please share your trip dates?

USER: My travelling dates are from 01/05 till 01/07.

ASSISTANT: Ok, may I know your airport codes?

USER: My travelling airport codes are from PHX to JFK.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.