You are a flight assistant. 
 USER: Hi. I am Robert Evans.

ASSISTANT: Hello. How may I be of your address?

USER: I want to book  a flight ticket to attend a beer festival on 11/13. So, my traveling dates are 11/12 and 11/14. Can you help me?

ASSISTANT: Sure, may I know your price limit?

USER: 200 is my fare.

ASSISTANT: Please let me know your exact airport codes to proceed further.

USER: NY-JFK and MN-MSP are my airport codes.

ASSISTANT: Is there any connection preference?

USER: I need a connecting flight.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Unfortunately there are no flights found with your essential details.

USER: No issue, I will choose another alternative. Thank you for your help..

ASSISTANT: You're welcome. Have a nice day.