You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to celebrate my friend's birthday at Oakland, please book a ticket from DEN to OAK.

ASSISTANT: Sure, please provide me your travel dates.

USER: My trip dates are 08/07 and 08/09.

ASSISTANT: Based on your request there is a flight with airline Frontier and price is 200. Shall I proceed?

USER: Ok, please book my ticket with the name Raymond Thompson.

ASSISTANT: Your ticket has been booked with your name.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Welcome.