You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Mark Jones here. I would like to book a ticket from LAX to DEN, can you please help me with that?

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

USER: The travel dates are from 07/03 to 07/05.

ASSISTANT: Ok, do you have any other requirements?

USER: I would like to return during morning time.

ASSISTANT: Please wait.

USER: Ok. I need a flight with 1 connection limit.

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

USER: That's ok, thank you for your help.

ASSISTANT: My pleasure.