You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, can you please tell me how can I assist you?

USER: I just want to cancel my reservation due to some health issue, can you help me out?

ASSISTANT: Ok, may I know your name?

USER: Sure, my name is Deborah Campbell.

ASSISTANT: Sorry, no reservation found with your name in my database.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us.