You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in booking a flight ticket from PHX to DCA?

ASSISTANT: Please help me with your journey dates.

USER: My trip dates are May, 1 and May, 3.

ASSISTANT: Do you need any connection limit?

USER: I would prefer single connection.

ASSISTANT: Are there any other specifications?

USER: No, thank you.

ASSISTANT: May I know your name?

USER: Andrew Lopez here.

ASSISTANT: Southwest Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 3:00 hours and arrives at 7:00 hours, shall I book your ticket in this flight?

USER: Yes, please book.

ASSISTANT: Your ticket is confirmed in flight 1021.

USER: Thank you.

ASSISTANT: Thank you for opting us.