You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket to SEA on 12/29 from BOS. Can you aid me in booking?

ASSISTANT: Sure, may I know your return date?

USER: Ok, my return date is 12/31.

ASSISTANT: Ok, do you have any preferences?

USER: 500 is my price limit. And I need one halt in between.

ASSISTANT: We found Spirit airline with flight number 1005 with  a connection and fare is 200.

USER: Perfect, you can proceed now.

ASSISTANT: May I know your  name for booking?

USER: Make the booking with the name John White.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT:  Thank you for availing us.