You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Margaret Rodriguez.

ASSISTANT: How can I help you?

USER: I want to book a ticket from ORD to MSP to attend workshop, can you help me in booking?

ASSISTANT: Can I know your travel dates?

USER: I am departing on Apr 04 and return on Apr 06.

ASSISTANT: Do you have any specifications?

USER: I need a flight with connection limit 1.

ASSISTANT: Sorry, no flight found with your travelling dates.

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

ASSISTANT: Thank you.