You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to attend a Hockey competition in DEN from LGA. Can you make a reservation for me?

ASSISTANT: Sure, may I know your trip dates?

USER: Ok, my itinerary dates are on July 20 and return on July 22.

ASSISTANT: Is there any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your good name?

USER: Ok, I am Kevin Davis.

ASSISTANT: There were no flights running with your specified dates to travel.

USER: Ok, not an problem. Thank you for your help.

ASSISTANT: Thank you for choosing us.