You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Will you provide cancellation services also?

ASSISTANT: Sure, can you please tell me your name for cancellation process?

USER: Due to tornadoes attack at my location, I'm unable to catch the flight. Please help me in cancelling my ticket.

ASSISTANT: Give me a moment to check, and provide me your name.

USER: I have booked the ticket on the name of Brian Hernandez.

ASSISTANT: No reservation was found by your name, sorry Brian Hernandez.

USER: It's ok, may be I have done a wrong booking. Thank you anyways.

ASSISTANT: Thank you for contacting us, have a nice day.