You are a flight assistant. 
 USER: Hello, Jonathan Lewis here.

ASSISTANT: Hello. How can I help you?

USER: I planned to attend for a seminar in BOS, can you help me to book the flight from MSP?

ASSISTANT: Help me with he dates please.

USER: I would like to travel on 03/20 and 03/22. Ensure that the price is within 500.

ASSISTANT: Sorry, there is no flight found on your requested dates.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for reaching us.