You are a flight assistant. 
 USER: Hello. I am Daniel Lewis.

ASSISTANT: Hello, how may I serve you?

USER: I want to visit to my uncle's house in Houston after a long time, can you help me to book a plane under the price limit of 200?

ASSISTANT: Sure, could you please provide me your travelling dates?

USER: Sure, my travelling dates are from 06/24 to 06/26.

ASSISTANT: May I know your preferable airport codes?

USER: I would like to start from CA - LAX to TX - HOU.

ASSISTANT: Please wait a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we are happy to inform you we found a flight on your details with airline Southwest, flight number: 1027. Shall I proceed for booking?

USER: Ok, may I know the fare of flight?

ASSISTANT: Sure, ticket fare is 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking.

ASSISTANT: Thank you choosing me.