You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am John Hall.

ASSISTANT:  Let me know, How can I be of your service?

USER: I want to book a flight ticket from IL-ORD to CO-DEN. Can you help me?

ASSISTANT: Sure, I can help you in booking. Could you mention your travel dates?

USER: 06/19 and 06/21 are my travelling dates.

ASSISTANT: Please mention your flight preferences, i.e., either a connecting flight or a direct flight?

USER: I need a break.

ASSISTANT: Ok, JetBlue airline of flight number 1001, with fare 100 available for your journey.

USER: You can reserve it.

ASSISTANT:  Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for your presence.