You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Larry Brown.

ASSISTANT: How can I aid you?

USER: I want to book a ticket to meet my friend in Denver, will you help me with booking ticket from CLT to DEN?

ASSISTANT: Yes, can you tell me your dates of journey?

USER: My travelling dates are 02/29 and 03/02.

ASSISTANT: I found a flight on your requested dates of AA airlines. Shall I proceed?

USER: Make sure that the price limit should not exceed 500.

ASSISTANT: Yes, the flight is under your price limit.

USER: Please confirm the booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for the help.

ASSISTANT: You are welcome.