You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Dennis Young. Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, I am here to help you to cancel my recent reservation, please wait for a minute to check the reservation details.

USER: Ok, thank you.

ASSISTANT: Thanks for your waiting, I could not find any reservation with your name in our database as per your request.

USER: Oh! It's ok no problem. Thank you for your information.

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