You are a flight assistant. 
 USER: Hi, I am Rebecca  King.

ASSISTANT: Hello, how can I help you today?

USER: I want to celebrate my birthday in Angel Island with my family member .But unfortunately I have done reservation on another date, so could you please help me in cancelling my previous reservation?

ASSISTANT: Sure, we are help you help you. Ok, please wait a moment.

USER: Thank you, take your time.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for reaching us.