You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in reserving a flight ticket to DEN from LGA?

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: May, I know your good name?

USER: I am Jonathan Jones.

ASSISTANT: When you are willing to travel?

USER: My travel dates are from Sept 28 to Sept 30.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.