You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER:  I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.

ASSISTANT: May I know your name?

USER: Yes, my name is Jacob Baker.

ASSISTANT: May be your ticket is not booked properly. That's why, I didn't found any reservation with your name.

USER: Ok, no issues, thank you for your service.

ASSISTANT: Welcome.