You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Cancel the reservation with the name of Rachel Carter.

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting. I have gone through all data, there is no reservation found on your name.

USER: Ok. Thank you.

ASSISTANT: Thank you for reaching us.