You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Do you need any assistance from my side at this time?

USER: My trip got postponed suddenly, so I need to change my trip dates in the recent ticket. Can you do that for me?

ASSISTANT: Sure, can you please share your name for checking purpose?

USER: Ok, my name is George Young.

ASSISTANT: Ok, there is no reservation found on the name when I check in my booking list to modify it.

USER: It's ok, thank you for searching and for your quick response.

ASSISTANT: Most welcome.