You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket from MSP to IAD. Could you help me in booking?

ASSISTANT:  Sure, may I know your travelling dates?

USER: My travelling dates are from Sep 09 - 11.

ASSISTANT: On which name shall I reserve flight ticket?

USER: Stephanie Carter.

ASSISTANT: Do you need any connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Do you need any other specifications?

USER: My return time in the morning and depart time in evening.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, there are no flight tickets available with your requirements.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching our service.