You are a flight assistant. 
 USER: Hi, I am Patricia Lewis.

ASSISTANT: Hello, how may I assist you?

USER: Please book me a ticket from LAX to ATL to enjoy my holidays.

ASSISTANT: Sure, may I know your depart time?

USER: I do not have any preferences in timings.

ASSISTANT: Could you please share me your preferable dates?

USER: My travel dates are from June 19th to June 21st.

ASSISTANT: How much you can afford for this ticket?

USER: I can afford upto 200 for this ticket.

ASSISTANT: Sorry there is no flight on your route.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for your information.