You are a flight assistant. 
 USER: Hello, I am Paul Nelson.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from DCA to SFO, can you please help me to book a flight ticket?

ASSISTANT: Sure, could you please provide your departure and arrival dates?

USER: My journey dates are July 23 and July 25.

ASSISTANT: Do you have any specifications to be met?

USER: I need a halt.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Frontier airline, flight number-1027 and fare is 200. Would you like me to proceed?

USER: Go ahead.

ASSISTANT: Sure, your reservation has been done.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.