You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I got an invitation to participate in Death Valley Adventure, held at Denver, CO-DEN, could you help me to hold a direct flight?

ASSISTANT: Sure, can you please share your trip dates?

USER: My trip dates are 01/06 and 01/08.

ASSISTANT: May I now your origin airport code please?

USER: My boarding point is New York NY-LGA.

ASSISTANT: Please share your good name?

USER: I am Kathleen Lewis.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no direct flight found on your given journey dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thanks for choosing us.