You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Lewis.

ASSISTANT: How can I assist you?

USER: Can you please help me in booking a flight ticket to DCA from ATL?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My planned dates are from 03/23 to 03/25.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Spirit airlines is having a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: You can proceed.

ASSISTANT: I have successfully booked your ticket with flight-1000, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.