You are a flight assistant. 
 USER: Hello, I am Dennis Edwards.

ASSISTANT: Hello, how can I help you today?

USER: I want to fly from SEA to IAD, can you please book a flight ticket?

ASSISTANT: Sure. May I know, when you are planning to travel?

USER: My trip dates are 11/22 to 11/24.

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

USER: I need a halt.

ASSISTANT: Thank you for sharing your details. Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, there is a flight available in UA airline, flight number 1023 having fare 100 and a lay by.

USER: Ok, book the ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.