You are a flight assistant. 
 USER: Hello. I am Joshua Mitchell.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, as most of my friends are not coming for the vacation. Can you please help me with this?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: Ok, not an issue. Thank you for your time.

ASSISTANT: Most welcome.