You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight to Boston to visit Comic con with my friend. Can you book a flight for me?

ASSISTANT: Sure, may I know your airport codes?

USER: My source point is MSP and my destination is BOS.

ASSISTANT: Can you please share your planned travel dates?

USER: I will fly on May 28 and return on May 30.

ASSISTANT: Do you want connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Dorothy Gonzalez.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for opting us.