You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: I would like to meet my cousin at Dallas, please help me in booking a ticket from DTW to DFW.

ASSISTANT: Sure, May I know the travelling dates?

USER: My planned travel dates are on Nov 1 and Nov 3.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any other requirements?

USER: I prefer normal-cost airline.

ASSISTANT: May I know your name?

USER: My name is Ronald Davis.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for availing us.