You are a flight assistant. 
 ASSISTANT: Hello, how can I help you?

USER: Hello, I am Melissa Hill. I want to travel to New York, NY - JFK from Washington DC - DCA to attend my board meeting. Can you book me a ticket from 01/16 to 01/18?

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. There is a Frontier airline with flight number 1021 and price of 100 matching your request.

USER: Ok, please book my ticket.

ASSISTANT: Ok, your reservation is done.

USER: Thanks for your service.

ASSISTANT: Thank you for reaching us.