You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I assist you?

USER: I need to travel from Philadelphia PA-PHL to Chicago IL-ORD.

ASSISTANT: Ok. Please specify your travel dates?

USER: And my planning dates are depart on 03/03 returning 03/05.

ASSISTANT: Ticket can be booked with airline Southwest, price 100. Flight number is 1007, connections 1.

USER: Thank you so much.

ASSISTANT: May I know your name?

USER: I am David Martinez.

ASSISTANT: Shall I proceed with booking ticket?

USER: Please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.