You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid 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?

ASSISTANT: Definitely, I will help you with that. May I know on whose name you have done your ticket reservation?

USER: I am Jeffrey Roberts.

ASSISTANT: There is no reservation found under your name, Roberts.

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

ASSISTANT: Thank you for choosing us.