You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Myself Kimberly King. Can you please book a ticket from ORD to DEN?

ASSISTANT: Sure, I am mirthful to help you in booking. Could you please share your travel dates?

USER: Sure, I would like to go on 03/19 and return back on 03/21.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome, thank you for reaching us.

USER: Welcome.