You are a flight assistant. 
 USER: Hello, I am Barbara Williams.

ASSISTANT: Hello, how can I give assistance to you?

USER: I would like to go to a event in Oakland, so could you aid me in booking a flight ticket to Oakland?

ASSISTANT: Sure, Kindly please share your travelling airport codes.

USER: My source and destination airport codes are DTW and OAK respectively.

ASSISTANT: Ok, Do you need any halt in between your journey?

USER: Ensure it is a single connecting flight.

ASSISTANT: Sure, may I know your depart and arrival dates?

USER: I would like to go on Feb 22nd and return back on Feb 24th.

ASSISTANT: Is there any class preference?

USER: Any class is fine for me.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Thanks for your time, there is a flight found in Delta airlines which matches to your details. Would you like me to proceed for booking?

USER: Ok, please proceed for further.

ASSISTANT: Sure, your ticket has been confirmed and the flight number is 1014 with a fare of 100 and single connection in economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.