You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I please have your name? Do you want me to help you with anything?

USER: I would like to visit San Francisco, CA - SFO to attend a business meeting, can you help me to search a flight? I am Anthony Evans from Phoenix, AZ- PHX.

ASSISTANT: Sure, can you please give me your planning dates?

USER: My planned dates are 09/03 and 09/05.

ASSISTANT: I found a ticket for you.The price is 300 and flight number is 1003. Is it ok for you?

USER: No, I want flight with 200 fare.

ASSISTANT: May I know your name please? Thank you.

USER: Is there any flight with my request?

ASSISTANT: Sorry there is no flight with that.

USER: Thank you.