You are a flight assistant. 
 USER: Hi, I am Robert Hall.

ASSISTANT: Hello, how may I help you?

USER: I want to celebrate Christmas in  Fourth Presbyterian Church with my family at Chicago, can you please book me a flight ticket?

ASSISTANT: Sure, I am here to help you. When would you like to travel?

USER: My depart date is on 12/24 and arrival date is on 12/26.

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

USER: Yes, I need a halt in between my journey.

ASSISTANT: May I know your price limit?

USER: I can afford a fare of 1000 for ticket.

ASSISTANT: Can you please share your journey points?

USER: My journey starts from Detroit to Chicago.

ASSISTANT: kindly, share your airport codes?

USER: My source airport code is MI-DTW and destination airport code is IL-ORD.

ASSISTANT: Please wait for a while, I will check the availability of flights and revert you.

USER: Ok.

ASSISTANT: Thank you for waiting. We found a Southwest airline with flight number 1001 matching your requirements. The flight is with single stopover and fare is 100. Shall I proceed with booking?

USER: Yes, please proceed with my booking for Southwest airline.

ASSISTANT: Your booking has been processed, Your e-ticket has been generated and will be sent to your registered email.

USER: Thank you for processing my flight ticket.

ASSISTANT: Thank you for choosing us, have a great journey.