You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Linda Hernandez. I would like to cancel my recent reservation because my brother marriage was postponed, can you help me?

ASSISTANT: Please wait a while.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for opting us.