You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Kathleen Thomas.

ASSISTANT: How can I help you for the day?

USER: Would please check flights to Boston, BOS?

ASSISTANT: Sure. Let me have your price limit?

USER: Sure. I can afford an amount of 5000.

ASSISTANT: Ok. Can I know your source code?

USER: Yes. I will fly from New York, LGA.

ASSISTANT: What are your scheduled dates?

USER: My Magic show was scheduled in New York on 07/02.

ASSISTANT: Ok.

USER: And I arrive on 07/04.

ASSISTANT: Sorry, we do not found any flights with your requirements.

USER: Ok. Thank you for the quick response.

ASSISTANT: Thanks.