You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Kevin Smith and I want to cancel my recent reservation due to my health issues. Can you help me?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found by your name. Do you want any more information please?

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you and have a nice day.