You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Margaret Lopez. I am planning to visit a Willis tower in Chicago. Can you please help me out to book a ticket from MCO to ORD?

ASSISTANT: Sure Lopez, can I know the travel dates please?

USER: I am planning to travel on 09/19 and return date on 09/21.

ASSISTANT: Give me a moment please, I will check and revert back to you.

USER: Sure, take your own time.

ASSISTANT: I found a flight for you in Southwest airline with price 100. Shall I book it?

USER: Please, proceed the booking.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: You are welcome.