You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, I am happy to help you. Can you please let me know your good name?

USER: Sure, my name is Jacob Wilson.

ASSISTANT: Sorry, there is no active reservation on your name in our data.

USER: Ok, not an issue. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.