You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Charles Lewis here.

ASSISTANT: How can I help you?

USER: I'm planning a round trip in Minneapolis, can you please book me a ticket?

ASSISTANT: That's really great Charles Lewis, can you please provide me your travelling dates for this journey please?

USER: Sure, my departure date is 12/29 and return date is 12/31.

ASSISTANT: What is your required airport for this journey, please share your following airport code.

USER: Both my source and destination airport codes are MSP itself.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I'll wait.

ASSISTANT: Flight - 1011 is available for you with 1 connection at the price of 100, can I book it?

USER: That's perfect, please proceed with booking.

ASSISTANT: Your reservation is confirmed with Frontier airlines. Thank you for reaching our services.

USER: Thank you so much for booking.

ASSISTANT: Have a great trip.