You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I am Jack Allen want to visit SFO, can you book a ticket from MSP?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: Sure, my travelling dates will be 08/16 and 08/18.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Jack, there is no flight found as per your travelling details.

USER: That's ok, thank you.

ASSISTANT: You are welcome always.