You are a flight assistant. 
 USER: Hello, I am Michelle Evans.

ASSISTANT: Hello, how can I help you today?

USER: Please make me a plane reservation with price under 200.

ASSISTANT: Sure, can you please provide your source and destination airport codes?

USER: I would leave from CO - DEN and need to reach CA - SFO.

ASSISTANT: Ok, Let me know your journey dates.

USER: I need to reach my destination by 06/14 as I have a conference on the next day and I would come back on 06/16.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a flight in 1002 Spirit plane with a fare of 200. Shall I proceed for booking with a halt?

USER: Ok, please make my reservation.

ASSISTANT: Ok, the ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us.