You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Anna Johnson, can you book my ticket from ORD to LGA?

ASSISTANT: May I know your trip dates please?

USER: My trip dates are from 12/15 to 12/17.

ASSISTANT: There is a flight available for you in AA airline with no connection. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.