You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, Can I know your name?

USER: I am Elizabeth Phillips.

ASSISTANT: How can I assist you?

USER: I would like to go for wedding shopping at Denver, DEN, can you please book a ticket for me?

ASSISTANT: I will, how much is your price limit for this journey?

USER: I need the ticket under the price range of 5000.

ASSISTANT: Could you please share me your travel dates?

USER: My traelling dates are on 09/27 and 09/29. My source point is OAK.

ASSISTANT: we are glad to inform you, there is a connecting flight on your requested dates. Would you like me to book with Delta airline?

USER: Yes, please. And share the flight details.

ASSISTANT: Your ticket has been confirmed with flight number 1000 and the price is 100.

USER: Thank you for booking a ticket.

ASSISTANT: Thank you for choosing our service.