You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Catherine White here.

ASSISTANT: How may I assist you White?

USER: I would like to attend a Shuttle tournament in Oakland. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you. Could you please provide your nearest airport codes to book your flight ticket?

USER: My airport codes are from DTW to OAK.

ASSISTANT: Ok, may I know your preferable dates that you want to travel?

USER: My departure date is 12/27 and return date is 12/29. Make sure my connections limit is 1.

ASSISTANT: Sure, I will check for it. According to your information, flight number 1017 from Delta airlines with the fare of 200 is available for you. Shall I proceed with this?

USER: Please proceed for booking the ticket.

ASSISTANT: Ok, your reservation done successfully.

USER: Thank you for helping me.

ASSISTANT: Thank you for approaching us, have a great journey.