You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for the day?

USER: Mark Davis here. I need to attend to a traditional festival event. Can you reserve me a ticket from ORD to CLT?

ASSISTANT: Sure, I am here to help you with that. May I know your travelling dates, please?

USER: My trip dates are 03/19 to 03/21.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: There is no flight in this route as per your travel dates.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Thank you for the help.