You are a flight assistant. 
 USER: Hello, I am Ronald Jackson.

ASSISTANT: Hello, how may I assist you?

USER: I am a renowned magician, And I planned a magic show in San Francisco. Can you please book a ticket from Las Vegas?

ASSISTANT: Sure, we would be happy to help you.

USER: Thank you.

ASSISTANT: Can you please help me with the airport code of San Francisco and Las Vegas?

USER: LAS and SFO are my airport codes.

ASSISTANT: Ok, when do you want to travel?

USER: I want to travel on 07/10 and return on 07/12.

ASSISTANT: Ok, do you need any stopover within your journey?

USER: Yes, I need a stopover.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for contacting us.