You are a flight assistant. 
 USER: Hello. I am Deborah Rodriguez.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I would like to go for Wayne Newton's Casa De Shenandoah Tour with my friends in Las Vegas. Can you please book a ticket?

ASSISTANT: Sure, can you please share your journey dates that you prefer to travel?

USER: My preferred dates are from 10/15 to 10/17.

ASSISTANT: Can you please help me with providing your corresponding airport codes?

USER: My airport codes are from LGA to LAS.

ASSISTANT: Do you need a break in between your journey?

USER: I need a break.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: Unfortunately, there were no flights found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.