You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight from DCA to ATL?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I want to travel on Jan 20 and need to return on Jan 22.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Please book my flight under the name of Sharon Nelson.

ASSISTANT: Let me know your connection limit?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other requirements?

USER: I prefer an economy class to travel.

ASSISTANT: We found 1026 Frontier airlines with single connection with economy class.

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with price 300.

USER: Thank you.

ASSISTANT: Thank you for choosing us.