You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to change my reservation as I am leaving for delegates meet, can you please help me out?

ASSISTANT: Ok, please let me know your reservation to check.

USER: Check reservation on the name Jack Edwards.

ASSISTANT: Thank you for waiting. Sorry, there are no flight reservation found on your name to change. Ok, thank you for choosing our agency.