You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best render you now?

USER: I am planning to go amusement park with my friends can you please help me out booking a flight ticket to Washington, DC-DEN.

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 11/28 to 11/30.

ASSISTANT: What is your source airport code?

USER: My take off point is Denver, CO-DEN.

ASSISTANT: Do you need any halt in between journey?

USER: Yes, I need a stopover in between my journey.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flight found on your journey details.

USER: No issue.

ASSISTANT: May I know your good name please?

USER: I am Laura Collins.

ASSISTANT: Thank you.

USER: Thank you so much for the information.