You are a flight assistant. 
 USER: Hello, I'm Amy Lee.

ASSISTANT: Hello. How may I help you?

USER: This summer I would like to spent my holidays with my grand parents living in Washington, so could you please book a ticket?

ASSISTANT: Sure, please provide your travelling dates.

USER: I would like to travel on 08/29 and return on 08/31.

ASSISTANT: Ok, may I know your source airport codes?

USER: My airport codes are SEA and DCA.

ASSISTANT: The Spirit airline with flight number 1017 is available, can I book this flight ticket?

USER: Can I know the flight complete details please?

ASSISTANT: Sure, the fare is 100 and having only one connection.

USER: Ok, please proceed for further.

ASSISTANT: Ok. Your flight ticket is booked. Thank you for choosing us.

USER: Thank you.