You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you book a ticket from JFK to PHX?

ASSISTANT: Sure, may I know the planned travel dates?

USER: Ok, my trip dates are from Nov 21 to 23.

ASSISTANT: Please provide me the specifications.

USER: I need a connecting flight.

ASSISTANT: May I know the name?

USER: Ok, I am Gregory Thompson.

ASSISTANT: Sorry, there are no flights are available for your desired intent.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.