You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: Kathleen Davis here. I would like to book a ticket from IAH to BOS, can you please help me with that? The travel dates are from 05/18 to 05/20.

ASSISTANT: Ok, do you need any halt in between the journey?

USER: Yes.

ASSISTANT: Ok, how much you can afford for a flight ticket?

USER: My fare is 200.

ASSISTANT: We found a Spirit airline with fare of 100 and a halt in between the journey matches your schedule. Shall I proceed with booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1029.

USER: Thank you for your help.