You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I want to book an normal-cost airline in the business class flight to visit MA . Can you help me?

ASSISTANT: Sure, help me with the trip dates?

USER: 03/31 and 04/02 are my trip dates.

ASSISTANT: May I know your airport codes?

USER: PHX and BOS are my airport codes.

ASSISTANT: Let me know your good name please?

USER: Betty Garcia.

ASSISTANT: Sorry, no flights were running at this moment.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.