You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER:  I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, may I know your name?

USER: Samantha Carter here.

ASSISTANT: Sorry, no reservation found on your name.

USER: No issue, thanks for the information.

ASSISTANT: Thank you for opting us.