You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I need to cancel my reservation. Do you provide cancellation services?

ASSISTANT: Sure, I am happy to help you. Could I have your name please?

USER: My name is George Perez.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal to cancel further.

USER: It's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for consulting us, have a great day.