You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am John Lewis.

ASSISTANT: How may I assist you?

USER: I want to travel from ORD to MCO. Can you help me to book a flight ticket?

ASSISTANT: Sure, may I know your travel dates please?

USER: I want to travel in the flight on 02/19 and 02/21.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: I found a flight for you in JetBlue airlines with fare 100. Can I book your ticket?

USER: Book the ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1025.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.