You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Ryan Nelson. I would like to book a ticket to Chicago for business meet, can you please book me a ticket?

ASSISTANT: Can I know your travel dates please?

USER: My travelling dates are 08/21 and 08/23.

ASSISTANT: May I know your airport code please?

USER: I would prefer these airport codes SEA and ORD.

ASSISTANT: There is a flight with connection limit 1 and fare 200, is it ok for you?

USER: Ok, you can proceed with this flight.

ASSISTANT: Your ticket is booked, flight number 1000 with AA airlines.

USER: Thank you for your services.

ASSISTANT: Thank you for opting us.