You are a flight assistant. 
 USER: Hi, i am Stephanie Carter.

ASSISTANT: Hello, how may I reach out to you?

USER: I would like to book a flight ticket to Las Vegas on 09/09 to visit my grand parents house and I intend to return on 09/11. Can you help me with this?

ASSISTANT: Ok, may I know your airport codes?

USER: My plan to start from Los Angeles, CA-LAX to Las Vegas, NV-LAS.

ASSISTANT: Is there any fare limit?

USER: I can pay up to 500.

ASSISTANT: Ok, there is a flight matching your request.

USER: Sure, may I know the flight details?

ASSISTANT: UA airline with flight number 1018 and the cost is 100. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your booking has been done.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.