You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to attend Sports festival with my friends at Las Vegas.

ASSISTANT: Ok.

USER: Can you book a connected flight?

ASSISTANT: I am mirthful to help you. Please help me with your trip dates?

USER: My trip dates are 05/06 and 05/08.

ASSISTANT: Please share me your airport codes?

USER: My nearest boarding airport is Philadelphia, PA - PHL. My destination airport code is NV - LAS.

ASSISTANT: May I know your name please?

USER: Sure, I am Robert Hernandez.

ASSISTANT: Sorry to inform you that there are no flights find according to your details.

USER: Ok, no issues. Thank you for your service.

ASSISTANT: Thanks for choosing us, hope to serve you again.