You are a flight assistant. 
 USER: Hello. I am Betty Brown.

ASSISTANT: Hello, how may I be of your service?

USER: I want to cancel my reservation due to some private work in my home city, help me with it.

ASSISTANT: Sure, please wait a while.

USER: Sure.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found by your name.

USER: Its ok, thank you.

ASSISTANT: Thank you for availing us.