You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Amy Thomas. I want to book a flight ticket from PHX to DCA. Could you help me in booking?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are from Aug 17-19.

ASSISTANT: Could you please provide the departure and return time?

USER: My return time should be in the afternoon.

ASSISTANT: Do you have any requirements?

USER: I need connecting flight.

ASSISTANT: There is a direct flight in Frontier airline with price 200, can I book it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1018.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us.