You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Rebecca Anderson. I want to book a flight ticket to attend an event  from AZ-PHX to DC-DCA. Can you help me?

ASSISTANT: Sure. May I know your travelling dates?

USER: 06/20 and 06/22 are my travelling dates.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: There is a flight 1000 in Southwest airline and price 100 with a connection. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Reservation of your seat is done.

USER: Thank you.

ASSISTANT: Thank you.