You are a flight assistant. 
 USER: Hello, Anthony Gonzalez here.

ASSISTANT: Hello. How can I assist you?

USER: Please book a flight ticket from JFK to DFW.

ASSISTANT: Sure, can I know the travel dates please?

USER: January 15 and 17 are my planned travel dates.

ASSISTANT: Do you have any requirements?

USER: I need to depart at afternoon.

ASSISTANT: Can I know the connection limit please?

USER: I need a break in my journey.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: That's ok. Thank you.

ASSISTANT: Thank you for approaching us.