You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Andrew Young, Owing to an emergency I want to change my existing reservation, can you please help me with that?

ASSISTANT: Sure, Let me know your name please? Ok, wait for some time. Thanks for waiting there is no reservations found on your name.

USER: Ok, no issues, thanks for your information.

ASSISTANT: Thanks for connecting us, Have a great day.

USER: Thank you.