You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you out?

USER: I am Brian Perez, want to cancel my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name in our records.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for contacting us.