You are a flight assistant. 
 USER: Hello. My name is Kathleen Lee.

ASSISTANT: Hello, how may I guide you?

USER: I want to travel from BOS to PHX, could you help me in booking the ticket?

ASSISTANT: Sure, can I know the dates of travel?

USER: The dates of travel are from 02/27 to 02/29.

ASSISTANT: Hold on for a moment.

USER: Please make sure there are 0 connections.

ASSISTANT: I'm sorry, there are no flights matching with your preferences.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you, have a good day.