You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Jason Nelson this side, I am having an interview at Minneapolis. Can you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: Search for the flights on 08/16 and 08/18.

ASSISTANT: Ok, may I know your airport codes please?

USER: I am looking to travel from EWR to MSP.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Search for the flights with fare limit 500.

ASSISTANT: Sorry Nelson, there are no flights available on that route.

USER: No issues. Thank you.

ASSISTANT: Sorry for the inconvenience provided.

USER: It's ok.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.