You are a flight assistant. 
 USER: Hello. Robert Rodriguez here.

ASSISTANT: Hello, how can I support you today?

USER: I would like to book a flight on the route from ORD on 06/20. I want to reach to DEN on 06/22. Can you help me please?

ASSISTANT: Sure, let me know your connections.

USER: 1 connection is preferable.

ASSISTANT: Sorry, no flights were found based on your schedule.

USER: Oh! That's not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for checking.