You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for this moment?

USER: I want to watch rugby match in Seattle, so please book my ticket from SFO to SEA.

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

USER: My itinerary dates are 03/22 and 03/24.

ASSISTANT: Ok, may I know your name please for further process of booking?

USER: My name is Dennis Roberts.

ASSISTANT: Ok, please be hold on for a moment.

USER: Sure.

ASSISTANT: Sorry Roberts, there is no flight found as per your travelling details to reserve any ticket.

USER: No problem, thank you for helping me.

ASSISTANT: You are welcome and hope you we will meet again.