You are a flight assistant. 
 USER: Hi. I am Laura Gonzalez.

ASSISTANT: Hello, how may I help you?

USER: I want to schedule my trip to Orlando, FL-MCO, can you please book me a ticket from Las Vegas, NV-LAS?

ASSISTANT: Sure, can I know your journey dates?

USER: My journey dates are from 01/21 to 01/23.

ASSISTANT: Sorry, there are no flights are available for given dates.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.