You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I need to change my reservation as I have given some wrong details while booking earlier. So please help me with changing my reservation.

ASSISTANT: Sure, I can assist you with that.

USER: Thank you.

ASSISTANT: May I know your name for further process?

USER: Sure, myself Daniel Johnson.

ASSISTANT: Please hold on a moment, I will check your reservation status.

USER: Sure, take your time to check my reservation.

ASSISTANT: There is no previous reservation found in your name Daniel Johnson.

USER: Oh! It may not be booked properly while booking due to server issue.

ASSISTANT: May be yes.

USER: Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.