You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: I have planned to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: I am here to help you with that. can you please provide your name for checking the reservation status?

USER: Thank you. Myself Sharon Jones.

ASSISTANT: Please wait for a while to check in our booking list.

USER: Sure, take your time.

ASSISTANT: Sorry for the trouble which is caused to you, I have not found any reservation on your name in our database.

USER: Oh! It may not be booked properly due to server issues. Anyway, thank you for your time.

ASSISTANT: You are welcome, thank you for choosing us.

USER: Most welcome.