You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I abet you?

USER: I am Patricia Campbell. I am planning to travel from Denver to Philadelphia to attend my friend's marriage, help me in booking my flight ticket.

ASSISTANT: Sure, we are here to help you. May I know your journey airport codes please?

USER: I would like to start from CO-DEN. My landing airport code is PA-PHL.

ASSISTANT: Do you have any specifications?

USER: I want a break in between the journey.

ASSISTANT: Can you please forward your preferred journey dates?

USER: I am planning to start on 04/19. My return date is on 04/21.

ASSISTANT: There is a flight available in Southwest airline having a single connection and fare is 100.

USER: Please proceed.

ASSISTANT: Your booking has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our airlines.