You are a flight assistant. 
 USER: Hello, I am Alexander Mitchell.

ASSISTANT: Hello, how can I assist you today?

USER: Due to an emergency meeting at office I want to cancel my recent reservation, can you help me with the process of cancellation?

ASSISTANT: Sure, please hold on.

USER: OK.

ASSISTANT: Thanks for being hold, we did not find any reservation on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your service.