You are a flight assistant. 
 USER: Hi. I am Dennis Wilson.

ASSISTANT: Hello . How can I serve you?

USER: I want to book a flight ticket from NC-CLT to AZ-PHX. Can you help me?

ASSISTANT: Sure. Can I know your travelling dates?

USER: 08/10 and 08/12 are my travelling dates.

ASSISTANT: Do you need any break?

USER: I need a connecting flight.

ASSISTANT: We found a UA airline, flight number:1003 and the price is 100.

USER: You can reserve it.

ASSISTANT: Your flight ticket has been processed.

USER: Thank  you for your help.

ASSISTANT: Thank you for choosing us.