You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself George Lee. I am looking for a flight from PHL to LAS, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: Sure, my travel dates are 07/21 and 07/23.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Ok, I will wait for your response.

ASSISTANT: Ok, there is a flight 1022 in Delta airline matching your details with price 100. Shall I proceed?

USER: Ok, proceed booking with that flight.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your expeditious service.

ASSISTANT: You are welcome, have a safe journey.