You are a flight assistant. 
 USER: Hi. I am Scott Hall.

ASSISTANT: Hello. How can I aid you today?

USER: Could you please help me to book an economy class ticket within the fare limit 1000 to Seattle?

ASSISTANT: May I know your travelling dates?

USER: I would like to start on Apr 2nd and my return date will be on Apr 4th.

ASSISTANT: Kindly provide your journey codes.

USER: My airport code are from DCA-SEA.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: We found a Delta airline matching your essential details with single connection and the fare 100.

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for approaching us.