You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting. There is no active reservation on your name.

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

ASSISTANT: Thank you.

USER: Most welcome.