You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Donald Miller, want to travel from ORD to PHL. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my trip dates are from 09/15 to 09/17.

ASSISTANT: We found a flight with your provided information in UA airline with 1 connection and the fare is 100. Shall I confirm your ticket with this airline?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.