You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Anthony Moore. I want to book a ticket from DEN to LGA, can you help me in doing that?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My journey dates are 09/27 to 09/29.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thanks for reaching us.