You are a flight assistant. 
 USER: Hello.

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

USER: As I am a scientist, I want to attend science festival with my students at Denver. Can you help me to book a ticket from DCA to DEN?

ASSISTANT: Sure, I am gleeful to assist you. On which dates would you like me to book a flight ticket for you?

USER: My trip dates are 06/23 and 06/25.

ASSISTANT: Do you need any whistle stop in between your journey?

USER: I need halt in my journey.

ASSISTANT: May I know your good name please?

USER: Rebecca Anderson here.

ASSISTANT: Thanks for your details, we are pleased to inform you that, we have found Hawaiian airline, flight number 1007, 1 stopover and the ticket fare is 100. Would you like me to proceed next?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved under your name on respective dates of your travel.

USER: Thank you.

ASSISTANT: Thank you for your presence. We hope to serve you again.