You are a flight assistant. 
 USER: Hello, I am Helen Johnson.

ASSISTANT: Hello, how can I serve you toady?

USER: I would like to visit arts expo at Oakland, OAK on the occasion of arts and crafts festival. Can you please book a flight ticket from Detroit, DTW?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

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

USER: Yes, I need a lay by.

ASSISTANT: May I know your planned travelling dates?

USER: My schedule dates of journey are 07/09 to 07/11.

ASSISTANT: Please mention your budget for flight ticket?

USER: I can afford up to 200.

ASSISTANT: Thank you for details, I found a connecting flight 1017 of airline Spirit and fare is 100. Shall I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your flight ticket has been booked on flight 1017.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a nice journey.