You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Raymond Young and I just want to change an existing reservation due to my robotic internship got pre pone.

ASSISTANT: Ok, let me check the status and revert you.

USER: Sure.

ASSISTANT: Sorry there is no reservation found on your name.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us.