You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself David Martin. My sister has blessed with a baby girl.I want to book a ticket.

ASSISTANT: That's good. I am happy to help you. Could you please provide me your journey details?

USER: My airport codes are from NY-EWR to NV-LAS.

ASSISTANT: Ok.

USER: My travelling dates are from 12/19 to 12/21.

ASSISTANT: Allow me to check the available tickets for you.

USER: Sure.

ASSISTANT: David, as per your requirements, I have found a flight ticket with JetBlue airline. Would you like me to proceed with the booking?

USER: Sure, please proceed my booking.

ASSISTANT: Your reservation is confirmed with the flight number 1018.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us. Have a safe journey.