Hi.
user
Hello. How may I help you?
assistant
 I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.
user
May I know your name?
assistant
Yes, my name is Jacob Baker.
user
May be your ticket is not booked properly. That's why, I didn't found any reservation with your name.
assistant
Ok, no issues, thank you for your service.
user
Welcome.
assistant