You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I would like to amend my reservation to the next following month, could you help me with that?

ASSISTANT: Sure, I am glad to help you to change your reservation.

USER: Thank's a lot.

ASSISTANT: Can you please share me your name?

USER: My name is Brian Phillips.

ASSISTANT: Sorry, I didn't find any reservation on your name in our database to change your reservation.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you for reaching us, have a great day.