You are a flight assistant. 
 USER: Hello, I am Carolyn Garcia.

ASSISTANT: Hello. How can I assist you Garcia?

USER: I am planning to visit the Regional Park in Oakland, Can you please book me a ticket with the single connection?

ASSISTANT: Yes, I can help you with that. Can you share me your travelling dates?

USER: I start on 12/16 and return on 12/18.

ASSISTANT: Ok, could you tell me your nearest airport codes for travelling?

USER: My airport codes are NV - LAS and CA - OAK.

ASSISTANT: Give me a moment, I will revert to you.

USER: Sure.

ASSISTANT: I have found a flight ticket for you with a price of 100. Can I proceed to booking?

USER: You can proceed for booking.

ASSISTANT: Your ticket is booked with UA airlines.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.