You are a flight assistant. 
 USER: Hello, I am Melissa Young.

ASSISTANT: Hello, what can I do for you?

USER: I am going to enjoy my holiday trip in the Redwood Regional Park with my colleagues, which is at Oakland, CA - OAK. Can you please avail me a flight ticket on 03/31?

ASSISTANT: Sure, may I know your origin airport code?

USER: I wish to board at Minneapolis & St. Paul, MN - MSP.

ASSISTANT: When you are willing to return from Oakland?

USER: I would like to return on 04/02.

ASSISTANT: I found a connecting flight from Delta airline and flight number 1006. Shall I proceed to book?

USER: Please book it.

ASSISTANT: Your flight ticket is booked with price of 100.

USER: Thank you.

ASSISTANT: Thanks for availing us, have a great day.