You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I'm Karen Hernandez. Can you please help to cancel my recent reservation?

ASSISTANT: Sure, just wait a moment to check your previous active reservation. Sorry Karen, we don't found any reservation under your name.

USER: Ok,fine.Thank you for your information.

ASSISTANT: Thank you for connecting with us, have a good day.