You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: I want to cancel my reservation, so please help me in the cancellation.

ASSISTANT: Sure, can you mention your name to proceed further?

USER: Myself James Allen.

ASSISTANT: Sorry, no reservation found on your name in our portal to cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for contacting us.