You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: Richard Jackson is my name. I am travelling to MCO and DEN, can you help me in booking the flight ticket?

ASSISTANT: Sure, may I know your travel dates to search a good flight?

USER: My travelling dates are 12/24 and 12/26.

ASSISTANT: Sorry, I could not find any flight with your travel dates.

USER: That is not an issue, I will see another source to travel my destination.

ASSISTANT: Thanks for choosing us, have a great day ahead.

USER: Thank you for helping me.