You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Thomas Clark. Please book a flight ticket in my preferable travel dates May, 16 and May, 18.

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: My airport codes are PHX and EWR.

ASSISTANT: There is a flight available on your requested dates from Delta airlines with 1 connecting flight.Shall I confirm your booking?

USER: Please proceed.

ASSISTANT: Your ticket is booked with flight 1014.

USER: Thank you.

ASSISTANT: You are welcome.