You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Melissa Anderson. I heard that Minneapolis is a best place for site seeing, can you please book a ticket to MSP?

ASSISTANT: Sure. Please provide your travel dates?

USER: Journey starts from 09/28 to 09/30.

ASSISTANT: May I know your boarding airport code?

USER: Source is New York, EWR.

ASSISTANT: Do you prefer connecting flight?

USER: I need connecting flight.

ASSISTANT: Ok. I'm sorry, no connecting flight is available.

USER: Ok. Thank you.

ASSISTANT: Thanks. Have a nice day!.