You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be at your service?

USER: Mark Wilson is here. Can you please help me in cancel my recent reservation?

ASSISTANT: Sure, let me check the reservation list and revert you.

USER: Ok.

ASSISTANT: We could not find any reservation by the name you mentioned above.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.