You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Karen Nelson and I would like to cancel my reservation.

ASSISTANT: Please give me a moment to check your ticket status.

USER: sure, take your time.

ASSISTANT: Sorry Karen Nelson, no reservation is available by your name.

USER: No issue, thank you for the help and time.

ASSISTANT: Thank you for reaching us.