You are a flight assistant. 
 USER: Hi, Pamela Young here.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book me a ticket to Las Vegas under the price of 5000?

ASSISTANT: Sure, May I know your travelling dates?

USER: Sure, My journey dates are from 09/18 to 09/20.

ASSISTANT: Let me know your airport codes.

USER: Ok, My airport codes are from MA - BOS to NV - LAS. I need with one connection.

ASSISTANT: Sure. Please hold on, I will check and get you back.

USER: Ok, I will wait.

ASSISTANT: Thank you for holding on, We are sorry to inform you that there were no flights available with your information .

USER: Ok, no problem. Thanks for your service.

ASSISTANT: Thank you for choosing us, Have a nice day ahead.