You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be a help for you?

USER: I need to change my reservation which I have done earlier to submit report but unfortunately I did not completed my observation. So, please help me with changing my reservation.

ASSISTANT: Ok, may I know the name on which you have booked the ticket?

USER: Sure, please check the reservation with name of Amanda Brown.

ASSISTANT: Sorry, there is no reservation found on your name in our database to change.

USER: Oh! May be booking is not done properly. Anyway, thank you for your time.

ASSISTANT: Thank you for connecting us.

USER: Most welcome.