You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for today?

USER: I am Gregory Mitchell. I need to cancel my reservation, can you help me out please?

ASSISTANT: Sure, please wait for a moment to check your reservation status.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: That's ok, no problem. I will check with my email about this concern. Anyway thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.