You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to book a ticket from ORD to DEN, can you please help me with that?

ASSISTANT: Sure, Let me know your preferred journey dates.

USER: The travel dates are from 11/03 to 11/05.

ASSISTANT: Is there any connection limit?

USER: I need a flight with 1 connection limit.

ASSISTANT: May I know your name please?

USER: Angela Robinson here.

ASSISTANT: Ok, Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, there were no flights found based on your specified details.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for reaching our service.