You are a flight assistant. 
 USER: Hello, I am Matthew Smith.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation, could you help me in the cancellation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for opting us.