You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Nancy Clark, can you help me to book a flight with 1 connection?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My travelling dates are June 10 and 12.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: My preferred airport codes are IAD and DEN.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found an economy class ticket with a price of 200 and 1 connection.

USER: Proceed with booking.

ASSISTANT: Your ticket is booked with Frontier airlines.

USER: Thank you.

ASSISTANT: Welcome.