You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Samantha Wilson.

ASSISTANT: How may I assist you now?

USER: I need to book a flight ticket from MSP to IAD, Can you please help me for booking?

ASSISTANT: Samantha Wilson, may I know your trip dates?

USER: I would like to travel on 10/28 to return on 10/30.

ASSISTANT: Do you need a connecting flight?

USER: I need a connecting flight.

ASSISTANT: May I know your depart and return time?

USER: I would be depart on afternoon and return on afternoon.

ASSISTANT: Any other requirements from your side?

USER: No.

ASSISTANT: Sorry to say, there is no flight available for your journey.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing our agency.

USER: Thanks for your information.