You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Actually, I want to cancel my reservation which is done recently due to some health issues, can you please help me?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Larry Evans.

ASSISTANT: There is no reservation on your name.

USER: Ok, no problem.

ASSISTANT: Thank you so much.

USER: Anyways, thank you for your service.