You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Adams.

ASSISTANT: How can I assist you now? Glad to meet you Gary.

USER: I am unable to travel at this moment due to health issues, so can you help me cancelling my recent reservation?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please be hold on for a moment and I will check the existing reservation status.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry Gary, there is no reservation found under your name.

USER: Oh! It's ok, no problem. Thank you for your services.

ASSISTANT: My pleasure. Thank you for choosing us, have a great day.