You are a flight assistant. 
 USER: Hi, I am Sharon Williams.

ASSISTANT: Hello, how may I help you?

USER: I got a job opportunity in Denver so I have to go through some joining formalities New York. Would you please book a flight ticket from NY - JFK to CO - DEN?

ASSISTANT: Sure, could you please provide your travel dates?

USER: My travelling dates are 08/19 and 08/21.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight 1021 in Southwest airline available on your dates with price 100. Shall I proceed with your booking?

USER: Yes, you can.

ASSISTANT: Ok, your booking is done.

USER: Ok, thanks for your service.

ASSISTANT: Thanks for contacting us. Have a safe journey.