You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: As I have to give a seminar in a meeting at New York, I would like to travel from Charlotte. Can you help me book a connecting flight?

ASSISTANT: Ok, Is there any fare limit you need?

USER: Yes, It need to be within 500.

ASSISTANT: Please let me know your journey dates.

USER: I intend to travel on 09/12 and return on 09/14.

ASSISTANT: Can you provide me your airport codes to check the availability?

USER: I need to start from CLT  to reach LGA.

ASSISTANT: Ok. We found an Delta airline with flight number 1008 and price of 100 available for you.

USER: Ok, you can go ahead for booking with airline.

ASSISTANT: May I know your name to proceed?

USER: My name is Justin Evans.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.