You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my existing reservation as I broke my leg and can not make it to the trip. Can you please help?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please help me with your name your name to check your details.

USER: My name is Kimberly walker.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We are sorry to inform you that, there is no reservation found with your name.

USER: No problem, my mother may have cancelled it. Thank you anyway.

ASSISTANT: Thank you for contacting us.