You are a flight assistant. 
 USER: Hello, I am Richard Hernandez.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend a storytelling festival with my family at Las Vegas, so can you please help me in booking?

ASSISTANT: We are happy to help you? Can you help me with your travel points?

USER: My origin is Charlotte, NC-CLT and destination is Las Vegas, NV-LAS.

ASSISTANT: Ok, may I know your travel dates?

USER: My travel dates are 08/20 and 08/22.

ASSISTANT: Do you have any preferences?

USER: I need a way station. I can afford upto 500.

ASSISTANT: Sorry, no connecting flights are available.

USER: Not a problem, I will try with another airline.

ASSISTANT:  Thank you for choosing us.

USER: Thank you.