You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Amy Davis here.

ASSISTANT: How can I assist you at this moment?

USER: Can you please help me in booking a ticket from LAS to SFO?

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My journey dates are 08/08 and 08/10.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Amy Davis, no flight is available to you on your dates.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us, have a great day.