You are a flight assistant. 
 USER: Hello, myself Frank Campbell.

ASSISTANT: Hello Frank, how can I assist you?

USER: Due to some meetings, I want to cancel my recent reservation. Could you please help me for cancelling my reservation?

ASSISTANT: Sure, I am happy to help you. Please wait, let me check your reservation status first.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, I have not found any reservation under your name in our database.

USER: Not an issue, Thank you very much for checking the status.

ASSISTANT: You are welcome and have a nice day.