You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please book a flight ticket in economy class?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My travelling dates are June 06 and June 08.

ASSISTANT: May I know your airport codes?

USER: My airport codes are IAD to MSP.

ASSISTANT:  Do you require any stopovers in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I prefer to travel in normal cost airlines.

ASSISTANT: Please share your name.

USER: My name is Christopher Young.

ASSISTANT: Ok, please wait a minute I will get back to you with the flight details.

USER: Ok.

ASSISTANT: As per the intents mentioned, United Airlines is providing a connecting flight and the airfare is about 300. Shall I proceed with flight 1002?

USER: Yes, please proceed.

ASSISTANT: Your booking is done and flight number is 1002.

USER: Thank you.

ASSISTANT: Thanks for reaching us.