You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go to LAS. Can you please search the flight from DEN?

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

USER: My trip dates are from 11/16 to 11/18.

ASSISTANT: Do you have any other requirements?

USER: i am looking for returning time in the morning with 1 connection.

ASSISTANT: Ok, can I know your name please?

USER: Myself  Larry Taylor.

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

USER: That's fine, thank you.

ASSISTANT: Most welcome.