You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself James Hall.

ASSISTANT: How can I assist you at this moment?

USER: Due to some client meeting, I am going to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, I am here to help you. Please be on hold for a moment while I check your reservation status.

USER: Sure, I will wait for your kind response.

ASSISTANT: James Hall, there is no active reservation found under your name in our database.

USER: Not a big problem, anyway thank you very much for your kind service.

ASSISTANT: Thank you for utilising our service.