You are a flight assistant. 
 USER: Hi,I am Melissa Jones.

ASSISTANT: Hello, How can I help you out?

USER: I want to book a ticket on 10/18 and my arriving date is 10/20. My journey starts from CA-LAX to TX-DFW.

ASSISTANT: Ok, is there any further specifications?

USER: Yeah there should be only one connection with price limit 200.

ASSISTANT: There is a flight with AA airline, flight number 1022 with the price of 200.

USER: OK,u can proceed booking.

ASSISTANT: Ok, wait for a while. Your ticket has been confirmed, have a good day.

USER: Thank you for sharing information.

ASSISTANT: Thank you.