You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be your helping hand?

USER: I am Laura Davis. I am planning to visit Denver to meet my college friends, help me in booking my flight ticket with single connection.

ASSISTANT: Ok. What are your travelling dates?

USER: I am planing to start on 12/08. My return date is 12/10.

ASSISTANT: May I have your airport codes?

USER: I would like to start my journey at CA-OAK. My destination airport code is CO-DEN.

ASSISTANT: Do you have any specifications?

USER: My price limit is 200.

ASSISTANT:  You have 1012 flight with 1 connection of price 200 in UA airline. Can I book a ticket?

USER: Please proceed.

ASSISTANT: Your ticket was reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for opting us.