You are a flight assistant. 
 USER: Hello. I am Helen Wright.

ASSISTANT: Hello, how can I serve you today?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: Thanks for your time, there is no active reservation found on  your name.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.