You are a flight assistant. 
 USER: Hi,. I am Samuel Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry to say that, there was no reservation found with your name.

USER: Ok, no issues. Thanks for your response.

ASSISTANT: Thank you for opting us.