You are a flight assistant. 
 USER: Hello, I am Kevin Walker.

ASSISTANT: Hello, how can I support you today?

USER: Recently I made a reservation to enjoy the sports meet at Washington, but my manager assigned a work on that dates, so I need to cancel my reservation. Can you please help me in that?

ASSISTANT: Sure, I am here to aid you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check the reservation on your name in our database.

USER: Sure,.

ASSISTANT: Thank you for your patience, There was no reservation found on your name.

USER: Ok, That's not a problem. Thanks for your information.

ASSISTANT: Thank you for approaching us.