You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I serve you?

USER: Serve me in booking a flight ticket to Phoenix, AZ - PHX under a fare of 200.

ASSISTANT: Sure. May I know your travelling dates?

USER: 10/21 and 10/23 are my travelling dates.

ASSISTANT: Let me know your origin.

USER: Denver, CO - DEN is my origin point.

ASSISTANT: Do you have any specifications?

USER: I prefer only connecting flights.

ASSISTANT: We found a direct flight to your destination.

USER: No, do not proceed to that.

ASSISTANT: Ok.

USER: Thanks for your time.

ASSISTANT: May I know your name?

USER: Patricia Thompson is my name.

ASSISTANT: Ok, Thank you.