You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Donald Collins. I want to cancel my recent reservation, can you help me?

ASSISTANT: Ok, I will assist you with that.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation been found on your name as per our records.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing our agency.