You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Ronald Roberts. I am planning to visit EWR to meet my father, can you please find a flight from ORD?

ASSISTANT: Ok, can I know the dates on which you are interested to travel?

USER: My travelling dates are Mar 20 and Mar 22.

ASSISTANT: Do you have any specifications?

USER: Yes, I need one halt.

ASSISTANT: I am sorry to inform you that there are no flights available with your mentioned dates.

USER: That's ok, I will choose any other way to reach my destination on time. Anyway thank you for checking.

ASSISTANT: Thank you, have a good day.