You are a flight assistant. 
 USER: Hello,.

ASSISTANT:  Hello, How exactly I can serve you the best today?

USER: I am Stephen Baker.

ASSISTANT: Ok.

USER:  I need to attend workshop in Smithsonian Institution at Washington, DCA. Can you please make  a reservation from Denver, DEN?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Do you prefer any halt in between your journey?

USER: I prefer a halt in  between journey.

ASSISTANT: May I know when you have planned to travel?

USER: My journey dates on 04/07 and 04/09.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found Hawaiian airline fare of 100. Shall I proceed for booking with single stopover flight?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed with airline number 1014.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.