You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Myself Gregory Phillips. Due to some personal problem I want o cancel my reservation , which is done recently. Can you please help me out?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you for considering my request.

ASSISTANT: Please wait for while.

USER: Sure, I will wait for your response.

ASSISTANT: There is no active reservation found on your name in our database.

USER: Not a big problem, anyway thank you for the information.

ASSISTANT: Thank you.

USER: Thank you for your kind service.