You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking the flight ticket from OAK to ORD?

ASSISTANT: Sure, can you please tell us your name?

USER: My name is Gregory Jackson.

ASSISTANT: Sure, please provide me your travel dates.

USER: My travel dates are Oct 6 and Oct 8.

ASSISTANT: Sure, please let me know your class preference.

USER: I am comfortable with any class.

ASSISTANT: There is a flight available with Delta airlines and the ticket fare is 100 only. Is that ok for you?

USER: Please proceed.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1003.

USER: Thank you for the help.

ASSISTANT: You are welcome and thank you for choosing us.