You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Please help me out in booking the ticket from ORD to DTW.

ASSISTANT: Sure, we are here to help you. May I know your travelling dates?

USER: My trip dates will be Aug 3 to Aug 5.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: Barbara Robinson is my name.

ASSISTANT: Ok, wait for some time.

USER: O. Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's ok, thank you.

ASSISTANT: Thanks for approaching us.