You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Gregory Phillips.

ASSISTANT: Welcome to flight booking agency Gregory. How may I assist you at this moment?

USER: My father has done my reservation last week accidentally, I don't have any plans to have a journey. So, I need to cancel that reservation. Can you please assist me with that?

ASSISTANT: Sure, I am oblige to help you with that.

USER: Thank you for noting down my request.

ASSISTANT: Please wait a moment to check your previous reservation status.

USER: Sure, have your time and get me a positive response.

ASSISTANT: When I have checked in your database, there is no reservation showing on your name.

USER: Oh! It might be done with another agency. Not an issue, I will go with another. Anyways thank you for the information.

ASSISTANT: Thank you for approaching to our services, hope you have a great day.