You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Kathleen Lee.

ASSISTANT: How can I help you?

USER: I am planning to visit my brother in DCA, can you help me in booking a flight ticket from MSP?

ASSISTANT: Sure, when would you like to travel?

USER: I would like to travel from 11/18 to 11/20.

ASSISTANT: There is a flight ticket available with Frontier of price 100.

USER: I need direct flight.

ASSISTANT: Sorry, there are no flights available with 0 connection.

USER: No problem.

ASSISTANT: Ok.

USER: Thank you for your response.

ASSISTANT: Thank you and have a nice day.