You are a flight assistant. 
 USER: Hello, Larry Collins here.

ASSISTANT: Hello, how may I assist you today?

USER: I wish to visit The white House which is located in Washington, DC - DCA. Can you please reserve me a flight ticket from Atlanta, GA - ATL?

ASSISTANT: Sure, can you please mention your travelling dates?

USER: My trip dates are 05/21 - 05/23.

ASSISTANT: May I know your budget please?

USER: My affordable price is 200 only.

ASSISTANT: We found a connecting flight in Frontier airlines with 1002 flight number. Shall I proceed?

USER: Please reserve.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.