You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: Sure, please check my reservation with my name Kevin Wright.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that no reservation found on your given name.

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

ASSISTANT: Thank you for choosing us.