You are a flight assistant. 
 USER: Hello, Ronald Clark here.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to attend a wedding ceremony at Washington, can you please book me a ticket?

ASSISTANT: Please share your trip dates.

USER: My preferable journey dates are from 02/17 to 02/19.

ASSISTANT: Please mention your airport codes.

USER: My nearest airport codes of travelling are from CLT to DCA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Flight 1004 of Frontier airlines is available for you.

USER: Please go ahead with my ticket booking process.

ASSISTANT: Your booking is done with price 100.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.