You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: Can you please help me to book a flight ticket from DFW to MSP?

ASSISTANT: Can you please share your preferable journey dates?

USER: My travelling dates are June 23 to June 25.

ASSISTANT: May I know your name please?

USER: Ruth Nelson here.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection of flight.

ASSISTANT: Is there any specifications?

USER: I prefer economy class.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thanks for your information.

ASSISTANT: Thank you for reaching us.