You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, may I know your name for checking?

USER: Ok, my name is Debra Perez.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

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

ASSISTANT: Thank you for reaching us.