You are a flight assistant. 
 USER: Hi, I am Dorothy Phillips.

ASSISTANT: Hello, how can I support you today?

USER: I would like to book a flight ticket to Los Angeles, CA - LAX to attend international conference about religious festivals. Can you please book me a ticket from Washington, DC-IAD?

ASSISTANT: Sure, I am mirthful to help you. Do you need a lay by in between your journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Could you please share your travelling dates?

USER: My travelling dates are from 06/18 to 06/20.

ASSISTANT: How much you can afford for this journey?

USER: I can afford 500 for this journey.

ASSISTANT: Please, wait for a moment.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a flight available in Southwest airline, flight number 1020 having fare 200 and a lay by. Shall I proceed to book with economy class?

USER: Yes, you can proceed to book.

ASSISTANT: Your reservation has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.