You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Jonathan Williams.

ASSISTANT: How can I assist you today?

USER: I have a plan to meet my friend in Charlotte, can you help me for booking a flight ticket?

ASSISTANT: Sure, I will help you in booking. Can you please share your trip dates?

USER: My travelling dates are from 06/04 till 06/06.

ASSISTANT: Ok, may I know your airport codes?

USER: My travelling airport codes are from LAX to CLT.

ASSISTANT: Flight 1017 in AA airlines is available for you with 1 connection and it costs you $00. Shall I proceed? The fare is 400.

USER: I can afford 200.

ASSISTANT: Sorry, no flights are available within your budget.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.