You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jason Collins.

ASSISTANT: How may I assist you at this moment?

USER: I would like to attend a science museum festival at DTW, can you help me to book a flight ticket from SEA?

ASSISTANT: Sure, I am here to help you but I need your travelling dates to search a flight.

USER: I am travelling from Jan 7 to Jan 9.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Yes, based on your request there is a flight with price 100 and airline Southwest is providing this for you, shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with economy class and flight number 1000.

USER: Thank you.

ASSISTANT: My pleasure, have a safe journey.