You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: Can you help me to book a flght ticket with one connection to attend my nephew's first birthday function at Phoenix?

ASSISTANT: Sure, we are here to help you. Do you have a limitations in connection and price?

USER: The price limit should be 500.

ASSISTANT: Please provide your dates of trip?

USER: I will start on 05/27 and my return date will be on 05/29.

ASSISTANT: Please help me with your source and destination points to book a flight ticket?

USER: My source is DC-DCA and the destination is AZ-PHX.

ASSISTANT: Please wait a minute, I will check and let you know.

USER: Sure.

ASSISTANT: Thank you for being patient, there is an UA airline of flight number 1012 having a one connection.

USER: Ok, you can book the ticket.

ASSISTANT: Ok, your booking has been reserved successfully.

USER: Thanks for your assistance.

ASSISTANT: May I know your name?

USER: I am Dorothy Campbell.

ASSISTANT: Thank you, have a safe journey.