You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Lee.

ASSISTANT: How may I assist you?

USER: I planning to go for industrial tour from Los Angeles to Charlotte for that reason can you please help me in booking my flight ticket with fare limit 200?

ASSISTANT: Yes, can you share me your travelling dates?

USER: My travelling dates are 06/28 and return on 06/30.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: My travelling airport codes are LAX and CLT.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 100 and it is a direct flight.

USER: It's ok, you can proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for contacting our agency.