You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Laura Anderson.

ASSISTANT: How may I assist you?

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

ASSISTANT: Yes, I can help you.

USER: Thank you.

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

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

ASSISTANT: Thank you for consulting us.

USER: Most welcome.