You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Nelson here.

ASSISTANT: How can I aid you?

USER: I want to book a flight from LAS to DFW to attend a party. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, my preferable travel dates are 12/18 and 12/20.

ASSISTANT: UA airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1000.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.