You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you at this moment?

USER: I want to cancel my recent reservation as my holidays are extended. Can you help me in cancellation?

ASSISTANT: For searching you reservation purpose, can you please tell me your name?

USER: I am Thomas Robinson.

ASSISTANT: Sorry, no reservation found on your name in my database. Thank you for choosing us.

USER: Ok, Thank you for your information.