You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: This is Dennis Miller.

ASSISTANT: May I know your good name please? Dennis, how can I help you?

USER: Could you please help me to book a flight ticket from CA-LAX to TX-IAH.

ASSISTANT: Sure, please tell me the travelling dates of your journey?

USER: My departure day is on 11/20 and return would be on 11/22.

ASSISTANT: OK, please wait for a moment.

USER: I need 1 connection flight with the price limit of 500. Is there any flight matching my request?

ASSISTANT: Sure, the flight number 1008, AA is the airline has the price 100 and the connections limit should be 1.

USER: OK, then please confirm it.

ASSISTANT: Now your ticket has been booked.

USER: I'll appreciate your help, thank you.

ASSISTANT: Thank you, have a safe journey.