You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Benjamin Turner. I want to cancel  my recent reservation, due to my health issue. Can you help me out?

ASSISTANT: Sure, I am here to help you. Please wait for a moment to check your details.

USER: Sure, take your time.

ASSISTANT: No reservation found on your name.

USER: Ok, not an issue.

ASSISTANT: Sorry for inconvenience.

USER: Thank you for your information.

ASSISTANT: Thank you for choosing us, have a nice day.