You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Gregory Edwards here.

ASSISTANT: Yes Gregory.

USER: I would like to change my travel dates in my previous booking, can you please help me with it?

ASSISTANT: Sure, i will help you in changing, please hold on for a moment to check your reservation status.

USER: Ok, sure.

ASSISTANT: Edwards, I did not find any active reservation wit your name in my database.

USER: Oh! That's completely fine, thank you for checking.

ASSISTANT: It's my pleasure.

USER: You are welcome.