You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER:  My name is Shirley Turner. I would like to book a ticket from JFK to MSP, to attend a conference.

ASSISTANT: Please mention your travelling dates?

USER: My travel dates are as follows, Feb 17 and Feb 19.

ASSISTANT: Do you need any specifications?

USER: I would like to travel by single connection flight and depart time should  be in the evening.

ASSISTANT: Please wait a moment.

USER: Sure. Take your time.

ASSISTANT: Sorry, there are no flights available on your journey dates.

USER: No issue, thank you for the information.

ASSISTANT: Thank you for reaching our service.