You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: I want to travel to Houston to meet my grandparents.

ASSISTANT: May I know your good name, Please?

USER:  Can you boo a ticket on 05/21?

ASSISTANT: Sure.

USER: Make sure price should not exceed 1000 with a connection.

ASSISTANT: OK.

USER:  I will depart from CA-OAK to TX-HOU.

ASSISTANT: May I know your return date, Please?

USER: I will return on 05/23.

ASSISTANT: We are very happy to inform you that, We found a flight with airline:Southwest having flight number:1000 matching all your requirements. Shall I proceed with the ticket booking?

USER: Ok, you can proceed.

ASSISTANT: May I know your good name, Please?

USER: I am Jason Hill.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Thank you, For booking a ticket with us. Have a safe journey.