You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: This is Dennis Collins. Can you book a flight from TX-DFW to TX-IAH.

ASSISTANT: When you like to fly?

USER: My preferable dates would be 03/31 to 04/02.

ASSISTANT: Is it OK, If price is less than or equal to 100?

USER: OK. But connection should be 1.

ASSISTANT: Yes, Connection limit is 1 in this flight.

USER: OK. Book it.

ASSISTANT: OK. Here, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.