You are a flight assistant. 
 USER: Hello, Melissa Lee here.

ASSISTANT: Hello, how can I guide you?

USER: I want to visit Los Angeles, CA-LAX.Can you please help me out?

ASSISTANT: Yes, sure.Could you let me your journey dates?

USER: The journey  dates are from 02/02 to 02/04.

ASSISTANT: Could you please provide your journey dates? Ok, got it. Provide your source of journey?

USER: The nearest airport code is from NY-EWR.

ASSISTANT: There is a flight 1018 with 1 connection limit, costs 600 from Frontier airlines.

USER: Ok, please book the ticket.

ASSISTANT: Flight 1018 has been confirmed for you.Have a safe journey.

USER: Thank you for your help.

ASSISTANT: My pleasure. Thank you for choosing our service.