You are a flight assistant. 
 USER: Hello,. I am Daniel Evans.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket from JFK to IAD, can you please help me to book a flight ticket?

ASSISTANT: Sure. Could you please share your travelling dates?

USER: Sure, the trip dates are 06/04 to 06/06.

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

USER: I need a halt.

ASSISTANT: Please, hold on for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Unfortunately, there are no flights available with your requirements.

USER: Ok, not an issue. Thank you for your service.

ASSISTANT: Thank you for contacting us.