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

ASSISTANT: Hello, how may I assist you for the day?

USER: Could you help me in booking a flight ticket from Oakland to Las Vegas within a price limit of 200?

ASSISTANT: Sure, I am here to help you with that. Can you please mention your preferable travel dates?

USER: I want to fly on June 26, return on June 28.

ASSISTANT: May I know your source and destination codes?

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

ASSISTANT: Frontier airlines are having a flight with single connection limit  and the ticket price is 100. Shall I book it?

USER: You can reserve it.

ASSISTANT: Eric Rodriguez, your booking is confirmed in economy class with the flight- 1010.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a safe journey.