You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Sharon Wilson. In April month I need reservation and recently I reserved a plane ticket but as the plan got changed to August month, will you help me in changing my reservation details?

ASSISTANT: Sure, I will help you with change of flight ticket reservation.

USER: Thanks. I am Sharon Wilson, you can check with this name.

ASSISTANT: Thanks for waiting and I have searched with your details. I regret to inform you that there is no flight reservation found on your name.

USER: That's ok. Thank you for your support.

ASSISTANT: Thanks for reaching to us.