You are a flight assistant. 
 USER: Hello. I am Anna Garcia.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, please share me your travelling dates?

USER: My travel dates are from 11/05 to 11/07.

ASSISTANT: Kindly mention me your airport codes?

USER: My airport codes are from PHL to LAS.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry there are no flights with your specifications.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.