You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Rachel Carter. I want to book a flight ticket to attend a sports live event in Denver, could you help me in booking a flight ticket?

ASSISTANT: Sure, we are happy to help you. Could you provide me your travelling dates?

USER: I would like to fly on 10/27 and return on 10/29.

ASSISTANT: Ok, please provide me your journey points?

USER: My source is Philadelphia, PA - PHL and destination code is CO - DEN.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT:  Thank you for waiting. We found a connecting flight Delta with flight number  1004 and price is 200.

USER: You can proceed to booking.

ASSISTANT:  Your booking is confirmed.

USER: Thank you for your help.

ASSISTANT:  Thank you for availing us.