You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER:  I want to cancel my reservation, as I am no longer interest in that trip, as most of my friends are not attending. Could you help me?

ASSISTANT: Sure, I will help you. Please provide your name to search the existing reservation?

USER: I am Laura Rodriguez.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation with your name.

USER: Ok, no problem, thank you for your response and your service.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Thank you.