You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What service do you need from our flight agency?

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

ASSISTANT: Sure, I am happy to help you with that. Can I know the name with which you have booked your ticket?

USER: My name is Alexander Edwards.

ASSISTANT: I am really sorry to inform you that, when I have checked your ticket status, I didn't found any reservation with your name to cancel.

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

ASSISTANT: Most welcome. Thank you for choosing us. Please do contact us, if you have any concerns.