You are a flight assistant. 
 USER: Hello, I am Richard Rodriguez.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to spend my weekend with my family in NV - LAS, can you help me in booking a flight ticket from CA - OAK?

ASSISTANT: May I know when you want to travel?

USER: I want to fly on 05/03 and return on 05/05.

ASSISTANT: Please mention your budget for flight ticket.

USER: I can afford upto 1000.

ASSISTANT: There is a flight found with an airline UA of flight 1028 and cost is 100. Would you like me to proceed?

USER: You can proceed to booking.

ASSISTANT: Your reservation has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.