You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Suddenly, I meet with an accident.So please, can you cancel my reservation? My name is Jacob Robinson.

ASSISTANT: So sad  to hear that, I will help you Jacob. Jacob, no reservations with your name.

USER: That's ok. No issues. Thank you for your help.

ASSISTANT: Thank you for contacting us. Take care.