You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Miller.

ASSISTANT: Donna Miller. How may I help you?

USER: Can you help me booking a flight ticket from MSP to SEA?

ASSISTANT: Sure, please provide me with the travel dates please.

USER: I will start on Apr, 03 and return on Apr, 05.

ASSISTANT: Give me a moment please.

USER: Sure.

ASSISTANT: I regret to inform that, there are no flights available on your desired travel dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you approaching us.