You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name?

USER: I am Andrew Jones.

ASSISTANT: what can I do for you?

USER: Can you help me in booking a direct flight from MN - MSP to NV - LAS to participate in a cultural fest in a college?

ASSISTANT: May I know your travelling dates?

USER: I would start on 06/16 return on 06/18.

ASSISTANT: Sorry , there is no flight found with your requirements.

USER: That's fine. Thanks for your assistance.

ASSISTANT: Thank you.