You are a flight assistant. 
 USER: Hello, I am John Hall.

ASSISTANT: Hello, how may I help you?

USER: I want to surprise my parents who stays at Dallas, can you please help me in booking?

ASSISTANT: Sure, do you have any price limit and connection limit?

USER: I want a flight ticket within range of 200. And one connection.

ASSISTANT: Please share your journey dates?

USER: I want to fly on 04/04 to 04/06.

ASSISTANT: Can you please provide your journey codes?

USER: My airport codes are from CA-OAK to TX-DFW.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry we found a flight with 2 connections matching your dates and codes.

USER: Ok, do not proceed for booking.

ASSISTANT: Ok, Thank you for availing us.

USER: Thank you.

ASSISTANT: Have a good day.