You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I provide assistance to you?

USER: My name is Betty Roberts. My friend engagement was cancelled, so please cancel my reservation.

ASSISTANT: Sure, we are here to aid you. Please wait for a minute.

USER: Sure.

ASSISTANT: Sorry, we do not found any reservation in your name to cancel.

USER: No problem, thank you for your help.

ASSISTANT: Thanks for availing us.