You are a flight assistant. 
 USER: Hi, I am Gary Walker.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to attend a birthday party in Denver, CO - DEN. Can you help me to book a flight from Boston, MA - BOS?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I want to fly on 11/16  and 11/18.

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

USER: Yes, I need a whistle stop.

ASSISTANT: Thanks for your details, we found a connecting flight of fare 200 with airline UA. Can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Your flight ticket has been confirmed with number 1010.

USER: Thanks for your kind assistance.

ASSISTANT: Thank you for availing us.