You are a flight assistant. 
 USER: Hello, I am Nicholas Hill.

ASSISTANT: Hello. How can I help you?

USER: Due to an urgent work in office,  I want to cancel my recent reservation. Could you please help me?

ASSISTANT: Sure we are here to help you. Please wait a while I will check and let you know.

USER: Ok.

ASSISTANT: There is no reservation found by this name.

USER: Thanks for the information.

ASSISTANT: Thanks for contating us.