You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know what kind of service you are expecting from us?

USER: My name is Melissa Wilson. I am an artist and I would like to participate in the arts festival in Washington. Can you please book a flight ticket from Orlando?

ASSISTANT: Sure, I am happy to serve you. May I know your trip dates?

USER: My trip dates are 12/21 and 12/23.

ASSISTANT: Kindly mention your travel airport codes with abbreviates please?

USER: My airport codes are from FL-MCO to DC-IAD.

ASSISTANT: Do you have any other requirements?

USER: I need a flight with single connection. I can bare up to 500.

ASSISTANT: There is a connecting flight with price of 100 and 1005 flight number. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking has been confirmed with Frontier airline.

USER: Thank you for your service.

ASSISTANT: Thanks for your approach.