You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book my ticket from DFW to LAS. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates?

USER: My planned travel dates are from Sept 13 to Sept 15.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Do you have any other specifications?

USER: I need to book my ticket in business class.

ASSISTANT: May I know your name?

USER: Sure, my name is Emma Green.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: Not an issue, anyway thank you for the information.

ASSISTANT: Thank you for availing us.