You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anthony Thomas here.

ASSISTANT: Anthony, how can I assist you?

USER: I want to meet my father on his birthday, can you please help me to book my flight ticket from SEA to MSP?

ASSISTANT: Sure, please provide your trip dates.

USER: I will depart on 03/04 and return on 03/06.

ASSISTANT: Please hold on for a moment.

USER: Sure.

ASSISTANT: Sorry, no flight is available on your route.

USER: No problem, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.