You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please book a ticket from PHL to ORD to go for Innovation festival.

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: My travelling dates are Oct 31 and Nov 2.

ASSISTANT: May I know your name please?

USER: Sure, I am William Walker.

ASSISTANT: Do you need a connecting flight?

USER: I am comfortable with any connection.

ASSISTANT: Do you have any other specifications?

USER: My depart time is morning.

ASSISTANT: I found an economy class in United Airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1003.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.