You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER:  I am Justin Lewis planning a round trip to Philadelphia, PA-PHL to enjoy IPL match. Can you book a ticket?

ASSISTANT: Sure, could you please provide your travelling dates?

USER: My travelling dates are 09/19 and 09/21.

ASSISTANT: Do you need any halt in between the journey?

USER: I need a connecting flight.

ASSISTANT: Ok, how much you can afford for a flight ticket?

USER: I can afford 200 for the journey.

ASSISTANT: Ok, please wait for few minutes.

USER: Ok.

ASSISTANT: We found a 1021  Delta airline with fare of 200 matches your schedule. Shall I proceed with booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER:  Thank you for booking.