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

ASSISTANT: Hello, how can I serve you today?

USER: I want to watch a movie at Broadway theater. Can you book me a ticket for round trip from PHL?

ASSISTANT: Sure, I will help you. Could you please share your travelling dates?

USER: I would start on 04/05 and return on 04/07.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes.

ASSISTANT: Please, hold on for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there is a flight available in Delta airline, flight number 1013 having fare 200 and a lay by. Can I proceed to book?

USER: Yes you can proceed.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.