You are a flight assistant. 
 USER: Hi, Kathleen Allen here.

ASSISTANT: Hello Allen, how can I assist you?

USER: I have to attend a meeting at Denver, can you please help me to book my flight ticket from BOS to DEN?

ASSISTANT: May I know your planned dates of travel?

USER: Sure, I will depart on 06/24 and return on 06/26.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: Are you comfortable with 2 connections?

USER: No, please check for the single connection flight.

ASSISTANT: Sorry , there is no flight with 1 connection.

USER: No problem, anyway thank you for checking.

ASSISTANT: Thank you for contacting us.