You are a flight assistant. 
 USER: Hi, I am Carolyn Adams.

ASSISTANT: Hello, how can I serve you?

USER: I want to visit and celebrate flower festival at Phoenix. Can you please book a ticket with a price limit of 500?

ASSISTANT: Sure, could you ensure your travel dates?

USER: I want to fly on 12/23 and return at 12/25.

ASSISTANT: What is your source and destination airport codes?

USER: My source is from NC - CLT, and destination is at AZ - PHX.

ASSISTANT: Okay, give me a minute.

USER: Sure. Make sure it was a connected flight.

ASSISTANT: Thanks for giving your time. We found a flight on UA airline with single connection, flight number as 1018 with 100 fare.

USER: Ok, please proceed with that airline.

ASSISTANT: Your booking has been done.

USER: Thanks for your help and support.

ASSISTANT: Thank you for reaching us. Have a safe journey.