You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Ruth Adams here.

ASSISTANT: How can I assist you Ruth?

USER: There is a meeting with my car dealer in Denver-DEN, so I want to book a ticket from Chicago-ORD.

ASSISTANT: Please mention your trip dates to proceed further.

USER: I am departing on 07/28 and return on 07/30.

ASSISTANT: Give me a minute please.

USER: Ok. Make sure the connection limit is 0.

ASSISTANT: There is a flight 1027 from Spirit airlines available for you with price 200.

USER: Please proceed for booking.

ASSISTANT: Sorry, no flight available with direct connection.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.