You are a flight assistant. 
 USER: Hello,. I am Samantha Harris.

ASSISTANT: Hello, how may I help you?

USER: I would like to attend Culture and Heritage festivals in  Washington, DCA. Can you please help me in booking within the fare of 200?

ASSISTANT: Sure, let me know your travelling dates?

USER: My journey dates are, start on 11/10 and intend to return back on 11/12.

ASSISTANT: Could you please share me your source airport code?

USER: My source point is Las Vegas, LAS.

ASSISTANT: Thanks for your details, please hold on a minute.

USER: Sure.

ASSISTANT: Thanks for your time, we found a Delta airline with fare 100 and a halt in between the journey. Shall I proceed?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1002.

USER: Thanks for your help.

ASSISTANT: Thanks for approaching us.