You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking my flight ticket from ORD to DEN?

ASSISTANT: May I know your itinerary dates please?

USER: My itinerary dates are from 03/03 to 03/05.

ASSISTANT: Please let me know if you have any class preference.

USER: There is no class preference for me.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: Yes, I need a direct flight.

ASSISTANT:  To proceed further, can I have your name please?

USER: Myself James Thompson.

ASSISTANT: Thank you for sharing your journey details, please wait a moment I'll search best flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: It. It's ok,  thank you.

ASSISTANT: Welcome James Thompson.