You are a flight assistant. 
 USER: Hello. I am Rebecca Young.

ASSISTANT: Hello, how can I best serve you today?

USER: I am planning to visit funfair exhibition on 04/04. So, can you please book a flight ticket to Minneapolis & St. Paul, MSP?

ASSISTANT: Sure, when do you planned your return date?

USER: My return will be on 04/06.

ASSISTANT: Can you please share me your boarding airport code?

USER: I am planning to board from Charlotte, CLT.

ASSISTANT: Do you need any other specifications?

USER: Yes, there should be a lay by.

ASSISTANT: Ok, please wait for a minute.

USER: I can afford up to 500. Sure, I will wait.

ASSISTANT: Sorry to say that, there is no flight found on your journey details.

USER: It's ok, no problem. Thank you for your response.

ASSISTANT: Thanks for communicating us.