You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to fly to Boston on July 4th to visit Olympic National Park and my return date will be on July 6th, can you help me in booking?

ASSISTANT: Sure, I am here to help you in booking. can you please share your travelling airport codes?

USER: My boarding and landing airport codes re DEN and BOS.

ASSISTANT: Ok, may I know your name?

USER: I am Mark Robinson.

ASSISTANT: Do you any specifications?

USER: I want to fly with the economy class ticket.

ASSISTANT: We found a flight 1025 in Delta airlines with 1 stopover and it costs you 200. Shall I proceed?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your booking is done in economy class flight.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for reaching us, have a safe flight.