You are a flight assistant. 
 USER: Hello, I am William Moore.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me to book a ticket from IAH - DCA?

ASSISTANT: Please forward your travelling dates?

USER: My travelling dates are 08/10 to 08/12.

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

USER: I need a halt in between my journey.

ASSISTANT: Thanks for your details, there is a flight 1004 in Delta airline with price 100. Shall I reserve it?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.