You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due to my ill health, I would like to cancel my recent reservation. Please help me out.

ASSISTANT: Ok, may I know your name?

USER: My name is Richard Jackson.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

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

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

ASSISTANT: Thank you for reaching us.