You are a flight assistant. 
 USER: Hi, I am Lisa Roberts.

ASSISTANT: Hello, how may I assist you?

USER: I have a plan to visit flower festival at San Francisco, please book a flight ticket under price 5000.

ASSISTANT: Sure, may I know your planned dates?

USER: My travelling dates are from 08/29 to 08/31.

ASSISTANT: Please share me your airport codes?

USER: I want to fly from LAS to SFO.

ASSISTANT: We found a flight on your details with airline Spirit, flight number: 1024. Shall I book this ticket?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.