You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Steven Jones want to visit LAS, can you book a ticket from MSP?

ASSISTANT: Sure, can you help me with your journey dates?

USER: Sure, my travelling dates will be 02/09 and 02/11.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Sorry, no flight is available for you.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.