You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jeffrey Davis.

ASSISTANT: How can I assist you?

USER: I need to amend my reservation, can you help me out please?

ASSISTANT: Ok, please wait a moment. There is no reservation found on your name.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting our agency.