You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Angela Taylor. I would like to book a flight ticket from DFW to DEN.

ASSISTANT: Sure, can I know your preferable dates?

USER: I am planning to start on 01/31 and 02/02.

ASSISTANT: I found a flight 1017 of JetBlue airlines which has 0 connections, shall I proceed?

USER: Yes, please proceed. if there is only ! connection.

ASSISTANT: I am sorry, there are no flights available. Thank you, have a good day.