You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Kathleen Mitchell. I would like to travel from DTW to DFW. Can you please help me to book a ticket?

ASSISTANT: Sure, may I know your dates of travel please?

USER: My travelling dates will be on Apr 26 to Apr 28.

ASSISTANT: Do you have any price limit?

USER: I can spend 200.

ASSISTANT: May I know about your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while. Sorry, no flights are available as per your requirements.

USER: Ok. Not an issue. Thank you.

ASSISTANT: Thank you fir visiting us.