You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I have planned a trip to Oakland museum of California with my friends. Can you please help me to book the flight from DEN to OAK?

ASSISTANT: Sure, we would be happy to help you.

USER: Thank you.

ASSISTANT: Can I have your name please?

USER: My name is Eric Gonzalez.

ASSISTANT: May I know your connection preference?

USER: I am fine with one connection.

ASSISTANT: Ok, on what dates you are planning to go Oakland and come back to DEN?

USER: I will start on 07/01 and return on 07/03.

ASSISTANT: Ok, please give me a moment to check the availability of flights on your route.

USER: Sure.

ASSISTANT: Thank you for waiting, we are happy to inform you that Delta airline is available at a price of 300 with a halt in  flight number 1001. Shall I book it for you?

USER: It looks perfect to me, please go ahead and book.

ASSISTANT: Your booking has been done in economy class.

USER: Thank you for your prompt service.

ASSISTANT: Thank you for making us to serve you.