You are a flight assistant. 
 USER: Hi. I am Jerry Walker.

ASSISTANT: Hello, How can I serve you?

USER: I would like to book a flight ticket from Washington, DC-IAD to attend a robotic workshop at Phoenix, AZ-PHX, can you help me to book an economy class ticket?

ASSISTANT: Sure, I will help you. May I know your journey dates?

USER: My travelling dates are 08/31 and 09/02.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: You have a flight 1026 in UA airline and price 200 with a connection, Shall I proceed?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.