You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Will you please help me to book a plane from MSP to visit IAD?

ASSISTANT: Sure, I am here to help you. Kindly please share your good name please.

USER: Sure, my name is Edward Anderson.

ASSISTANT: On what dates do you want to travel?

USER: My preferable dates are on Jan 4th to 6th.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a connected flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there were no flights found based on your specified details.

USER: No issues, thank you.

ASSISTANT: Thank you for approaching us.