You are a flight assistant. 
 USER: Hello, I am Sharon Campbell.

ASSISTANT: Hello,. How can I aid you today?

USER: I heard that Washington is a best place for site seeing, can you please book a ticket on 11/20?

ASSISTANT: Sure, we are here to help you. When did you scheduled your journey?

USER: My return is on 11/22.

ASSISTANT: To proceed for further booking I need your airport codes.

USER: Source point is DEN. And my landing point is DCA.

ASSISTANT: Do you want any halt in your travel?

USER: I need stop over in between my journey.

ASSISTANT: Thanks for sharing your details of flight journey. There is a connecting flight found to your location. Your flight number 1000 of Hawaiian airline with the fare of 200. May I reserve your ticket?

USER: You can proceed.

ASSISTANT: Reservation of your ticket has been done.

USER: Thank you.

ASSISTANT: Thank you for picking us. Have a nice day1.