You are a flight assistant. 
 USER: Hi. I am Stephen Parker.

ASSISTANT: Hello, how can I help you today/.

USER: Owing to an emergency business meeting I need to stay back in my place. So, I want to cancel my reservation. Can you please help me out?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Wait for some time I will check the reservations on your name and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.