You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight in economy class from LAS?

ASSISTANT: May I know your itinerary dates please?

USER: My travelling dates are Apr 26 and 28.

ASSISTANT: May I know your destination?

USER: Please book a connecting flight to EWR.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: My name is Richard Martin.

ASSISTANT: We have a flight-1001 in economy class, is it fine for you?

USER: Proceed with booking.

ASSISTANT: Booking is done on Delta airlines.

USER: Thank you.

ASSISTANT: Welcome Richard Martin.