You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me in booking a flight ticket from Orlando, MCO to Las Vegas, LAS?

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are from July 20 to July 22.

ASSISTANT: On which name shall I reserve flight ticket?

USER: My name is Ruth Gonzalez.

ASSISTANT: Do you need any specifications?

USER: I need a direct flight ticket.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching our service.