You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from SFO to ATL. Could you help me in booking?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from July 16 - 18.

ASSISTANT: Can I know your connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: Timothy Carter.

ASSISTANT: Sorry, there are no flights available on your travelling dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.