You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Please book a flight ticket in the month of May from 25th to 27th.

ASSISTANT: Sure, may I know your source and destination airport codes please?

USER: My airport codes are from MSP to JFK.

ASSISTANT: Do you prefer connected flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I want to return in morning.

ASSISTANT: Can I have your good name please?

USER: I am Nancy Taylor.

ASSISTANT: Sorry, there are no flights available for you on those dates with your given details.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.