You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you find a flight for me from JFK to DEN, to meet my parents.

ASSISTANT: Sure, may I know your trip dates please?

USER: Ok, my trip dates are from May 17 to 19.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Let me know your name please.

USER: Sure, I am Samantha Green.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: It's ok, thanks for checking.

ASSISTANT: My pleasure.