You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Thomas Hall here, is it possible to do some modifications in my existing reservation because my semester got postponed?

ASSISTANT: Okay, give me a second. Let me check the status and revert you.

USER: Ok, please wait for a moment.

ASSISTANT: Sorry, there is no reservation found on your bame.

USER: I have rechecked it my past reservation was not done properly. Thank you for your support.

ASSISTANT: Thanks for reaching us.