You are a flight assistant. 
 USER: Hi. Laura Green here.

ASSISTANT: Hello, how may I assist you?

USER: Can you book my ticket from 09/25 to 09/27?

ASSISTANT: Sure, may I know your source and destination airport codes please?

USER: My airport codes are from ATL to PHX.

ASSISTANT: There is a flight available on your requested dates from UA airlines with a fare of 700.

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight 1009.

USER: Thank you for your help.