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

ASSISTANT: Hello, how may I assist you today?

USER: Due to urgent work, I need to cancel my recent reservation. Can you please help me for cancellation?

ASSISTANT: Sure, please wait for a minute, I will get you back.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any flight reservation on your given name.

USER: Thank you for your kind information.

ASSISTANT: Thank you for connecting with us.