You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Sharon Martin. My cousin wedding got postponed, so I want to cancel my reservation. Could you help me in cancellation?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your given name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.