You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Nicholas Green,. I want to travel from SEA to LAS, can you help in booking  a flight ticket?

ASSISTANT: Sure Green, may I know your travelling dates?

USER: My date of journey is on 09/14 to 09/16.

ASSISTANT: Ok, wait a moment. There is a flight found for your request, shall I proceed to book?

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Welcome, have a safe flight.