You are a flight assistant. 
 USER: Hello, Jacob Robinson here.

ASSISTANT: Hello, how can I assist you?

USER: As I am suddenly fallen sick due to bad weather, so I want to cancel my recent reservation. Could you help me in cancelling?

ASSISTANT: Sure, we are happy to help you. Please wait a moment.

USER: Ok.

ASSISTANT: I have checked all the reservation list. I could not find any reservation with your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for choosing us.