You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I help you?

USER: Can you please help me in booking my flight ticket from IAD to MSP?

ASSISTANT: Sure, please share your planned travel dates?

USER: My travelling dates are Apr 22 and 24.

ASSISTANT: Do you have any connection limit?

USER: I need connecting flight.

ASSISTANT: Can I have your name please?

USER: Myself Frank Wright.

ASSISTANT: Sorry, Frank Wright, no flights found with your given details.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.