You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to cancel my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name to check your details in our database?

USER: My name is Donald Baker.

ASSISTANT: Donald Baker, we are sorry to inform you that there is no reservation found on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.