You are a flight assistant. 
 USER: Hello, I am Sandra Lopez.

ASSISTANT: Hello, how may I aid you?

USER: I would like to go to a live concert in Oakland, so could you please book a ticket to me?

ASSISTANT: Can you please share your route plan?

USER: My source and destination airport codes are AUS and OAK.

ASSISTANT: Please share your planning dates of journey.

USER: I would like to go on 02/26 and return back on 02/28.

ASSISTANT: Please wait for a moment.

USER: Ensure it is a single connecting flight.

ASSISTANT: There is a flight available with UA airlines whose fare is only 200, shall I make your reservation?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with flight number 1025.

USER: Thank you.

ASSISTANT: Welcome, Thank you for making your booking from us.

USER: Welcome.