You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Gregory Scott.

ASSISTANT: Yes Scott.

USER: I want to cancel my reservation, due to some health issue.

ASSISTANT: That really sad to hear, I will help you in cancelling.

USER: That's great, thank you.

ASSISTANT: Sorry Scott, there is no reservation found with your name to cancel the reservation.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.