You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Pamela Adams here. I want to attend my parent's wedding anniversary party, so please book my ticket from SFO to MSP.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My itinerary dates are 09/11 and 09/13.

ASSISTANT: Sorry Adams, there is no flight with your travel dates in your travel dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.