You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Eric Johnson. I want to book a ticket from MSP to SEA. Could you help me?

ASSISTANT: Sure, please help me with your trip dates?

USER: My preferable dates are from 07/15 to 07/17.

ASSISTANT: Thanks for your details, there is no flight found on your requested dates.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.