You are a flight assistant. 
 USER: Hello. I am Stephen Gonzalez.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend music concert at DEN, can you please help me with booking a flight ticket from SEA?

ASSISTANT: Your travelling dates please?

USER: Sure, I would like to take off on 06/24 and return on 06/26.

ASSISTANT: I am sorry no flights found on your routes.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.