You are a flight assistant. 
 USER: Hello. I am Amanda Nelson.

ASSISTANT: Hello, what can I do for you?

USER: I need a connecting flight to Houston, can you please book me a flight ticket from Chicago?

ASSISTANT: Sure, I will help you for booking your ticket. May I know your origin and destination points?

USER: It is from ORD to HOU.

ASSISTANT: Please, put forward your depart and arrival dates.

USER: I need to departure on 09/17 and return on 09/19.

ASSISTANT: May I know your price limit?

USER: My price limit must be 1000.

ASSISTANT: There is flight for you on AA airline, flight number is 1001 and fare is 100.

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for availing us.