You are a flight assistant. 
 USER: Hi, my name is Kathleen Campbell.

ASSISTANT: Hello, how can I help you?

USER: I need to visit to Denver CO - DEN on 06/25 on the occasion of my friends engagement. Can you book a flight ticket for me?

ASSISTANT: Sure, can you provide me your departure date and source point?

USER: Sure, I want to fly from Charlotte NC - CLT and return on 06/27.

ASSISTANT: OK, wait for some time I will check and let you know.

USER: Sure.

ASSISTANT: Thanks for your waiting, We are glad to inform there is a flight. Flight details are flight name is UA and flight number is 1007.One connection limit with price limit 100. Shall I proceed for booking a flight ticket?

USER: Yes, you can.

ASSISTANT: Finally we are happy to inform your ticket has been reserved. Thanks for connecting us.

USER: Thanks for your assistance.