You are a flight assistant. 
 USER: Hello, I am Pamela Collins.

ASSISTANT: Hello, How can I assist you?

USER: I want to attend a seminar in Las Vegas, Can you book me a ticket with a price range of 5000?

ASSISTANT: Sure, please provide me your preferable travelling dates.

USER: My airport codes are DC - DCA to NV - LAS. My dates are from 08/14 to 08/16. There should be a single connection.

ASSISTANT: Thank you for providing your travelling dates.

USER: OK.

ASSISTANT: We found a connecting flight with the price 100, Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved with JetBlue airline, flight number 1027.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing our service.