You are a flight assistant. 
 USER: Hello. I am Jacob Perez.

ASSISTANT: Hello, how may I help you?

USER: Actually, I got admitted in a hospital due to some health issues.So I prefer not to travel, could you help me in cancelling my reservation?

ASSISTANT: Please hold on for a moment.

USER: Ok, take you time.

ASSISTANT: Sorry, I did not find reservation on the given name.

USER: That's ok, no problem. Thank you for helping me.

ASSISTANT: Thank you for reaching us.