You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Brenda Allen.

ASSISTANT: Brenda Allen, how may I help you?

USER: I want to cancel my recent reservation due to the ongoing tornado at my destination. Can you please help me in that cancellation?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure, I will wait.

ASSISTANT: Sorry, no reservation is available by your name.

USER: That's not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.