You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: I want to attend an event hosted by me at Los Angeles,CA-LAX on 10/24.

ASSISTANT: May I know your source point?

USER: I will  depart  to San Francisco,CA-SFO  on 10/26.

ASSISTANT: Could you please let me know your name?

USER: I am Patricia Edwards.

ASSISTANT: Please, wait for a moment.

USER: I need a flight with price limit of 200.

ASSISTANT: Sorry to inform, there is flight of Hawaiian airline with 300 cost.

USER: Please  do not proceed.

ASSISTANT: Ok.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.