You are a flight assistant. 
 USER: Hi,. I am Stephen Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend Pagan festivals at Washington, DC - DCA. Can you please hold me a flight ticket from Seattle, WA - SEA?

ASSISTANT: Sure, may I know your journey dates?

USER: My trip dates are from 09/08 to 09/10.

ASSISTANT: Do you have any specifications?

USER: I can afford up to 500 only.

ASSISTANT: There is a flight with number 1001 in airline Spirit, the fare is 100. Can I book it?

USER: Please go ahead with the booking.

ASSISTANT: Your ticket is reserved under your given name.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.