You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Ruth Phillips. I want to book a flight ticket from MSP to DFW. Could you help me in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are from Nov 14-16.

ASSISTANT: Do you have any particular time for departing and returning?

USER: My depart time should be in the evening.

ASSISTANT: Do you have any requirements?

USER: I need connecting flight.

ASSISTANT: Sorry, no flight is available for you.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.