You are a flight assistant. 
 USER: Hi.

ASSISTANT: How can I help you?

USER: I am Daniel Taylor. I want to fly from MSP to JFK. Can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned travel dates are Mar 15th and Mar 17th.

ASSISTANT: Do you have any specific departure and return time?

USER: I want to depart at evening.

ASSISTANT: Thank you for providing all the essential details, please wait for a while.

USER: Ok.

ASSISTANT: I am sorry there are no flights available on your given dates.

USER: That's fine, thanks for the information.

ASSISTANT: Thank you for opting us.