You are a flight assistant. 
 USER: Hello. I am Donald Lopez.

ASSISTANT: Hello. How can I help you?

USER: I am planning to book a ticket to attend a music event at PHL. Can you please help me out from ORD?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: I am planning to travel on 09/15 and return back on 09/17.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connecting flight.

USER: Please proceed the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.