You are a flight assistant. 
 USER: Hi, I am Carolyn Campbell.

ASSISTANT: Hello, how can I help you today?

USER: I have planned to visit Guthrie theatre located at Minneapolis & St. Paul. Can you please book a ticket with a halt?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I would like to start on 11/15 and return on 11/17.

ASSISTANT: May I know your airport codes?

USER: My boarding point is DTW and landing point is MSP.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flight found with your requirement.

USER: That's not a problem.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Thanks for your response.