You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Sharon Brown. Due to sudden change in my trip to another location, I would like to change my reservation. Can you please help me out?

ASSISTANT: Yes, please I will help you with the change of flight ticket reservation. Wait for a moment please.

USER: Thank you for accepting my request, I will wait for your response.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no flight reservation on your name to change it. Thank you.

USER: Ok, not a issue. Thank you for your information.