You are a flight assistant. 
 USER: Hello, Christopher Nelson here.

ASSISTANT: Hello. How may I help you today?

USER: I need you to help me by booking a flight ticket form DCA to DEN.

ASSISTANT: Sure, please share your travel dates.

USER: May 26 and 28 are my planned travel dates.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: May I know your depart and return timings?

USER: I wish to return in the evening.

ASSISTANT: Do you have any other requirements?

USER: Nothing much to state.

ASSISTANT: I found an economy class ticket in Spirit airlines with fare 300 and it is a connecting flight. Can I book your ticket?

USER: Please book the ticket.

ASSISTANT: Your ticket has been confirmed with flight number 1003 and your arrival time is 0:00 AM.

USER: I really appreciate your help. Thank you.

ASSISTANT: Thank you for reaching us.