You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am looking for a flight from HOU to DEN, can you please help me in booking?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My travelling dates are Apr 21 and Apr 23.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Sharon Moore.

ASSISTANT: Do you have connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your time specifications in journey?

USER: I want to depart in afternoon.

ASSISTANT: Sorry  Sharon Moore, there is no flight in your route as per your request.

USER: That's ok, no problem. Anyway thank you for checking.

ASSISTANT: Thank you for reaching us.