You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you?

USER: I am Ashley Mitchell. I am planning to attend live music event IN Washington, can you please help me to book a flight ticket?

ASSISTANT: Sure. May I know from where you want to board?

USER: I need to fly out from PHL to IAD.

ASSISTANT: When are you planning to travel?

USER: My trip dates are 07/28 to 07/30.

ASSISTANT: D you need lay by in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please, wait for a while.

USER: Ok.

ASSISTANT: Thank you for being patience, there is a flight available with Hawaiian airline, flight number 1026 with fare 100 and a lay by. Shall I proceed with booking?

USER: Ok, book the ticket.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.