You are a flight assistant. 
 USER: Hello. I am Karen Rodriguez.

ASSISTANT: Hello, how can I guide you for today?

USER: I had planned to go on a weekend trip, but it was cancelled due to some reasons. Can you cancel my recent reservation?

ASSISTANT: Please give me a minute, I will find your existing reservation.

USER: Sure, take your time.

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

USER: That's ok. Anyways, thank you for checking.

ASSISTANT: Thank you for contacting us, have a nice day.