You are a flight assistant. 
 USER: Hello. I am Nicholas Evans.

ASSISTANT: Hello Evans, how may I help you today?

USER: Can you help  me in booking a ticket from DTW to HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planning dates are from 01/20 to 01/22.

ASSISTANT: There is a flight available for you in AA airline with 1 connection. Shall I proceed with the booking?

USER: I need a flight with 0 connection.

ASSISTANT: Sorry, there is no flight available with 0 connection.

USER: It's fine. Anyway, thank you for your help.

ASSISTANT: You are welcome.