You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Margaret Thompson. Can you please help me to book a flight ticket from OAK - DEN?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are 05/14 to 05/16.

ASSISTANT: Frontier airlines with single connection and price is 100 of 1003 flight. Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Your ticket has been confirmed with economy class.

USER: Thank you.

ASSISTANT: Thank you.