You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how best can I aid you for the day?

USER: I am Virginia Edwards. Could you please book a ticket to Seattle, WA-SEA from Philadelphia, PA-PHL?

ASSISTANT: Sure. May I know on which dates do you want to travel?

USER: I want to travel on 01/11 and return on 01/13.

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

USER: Yes, I need a lay by.

ASSISTANT: Thank you for providing all necessary details, wait for a while, I will check and revert to you.

USER: Sure.

ASSISTANT: Sorry, we found a direct flight on your preferred dates.

USER: Ok, no problem, I will try with another airline.

ASSISTANT: Ok.

USER: Thank you for the information.

ASSISTANT: Thank you for visiting us, have a good day.