You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Brian White. I want to cancel my reservation, due to earthquake in Minneapolis, can you help me?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure, take your time.

ASSISTANT: Brian, there is no reservation found under your name.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.