You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to attend a marriage in Dallas. Can you please help me for booking the flight ticket?

ASSISTANT: May I know your itinerary dates please?

USER: My travelling dates are June 10 and June 12.

ASSISTANT: Can I have your airport codes?

USER: My airport codes are SEA and DFW.

ASSISTANT: Is there any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: May I know your good name?

USER: My name is Jennifer Garcia.

ASSISTANT: There is a flight-1028 in business class, shall I confirm it?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, booking is done on Delta airlines.

USER: Thanks for helping me.

ASSISTANT: Welcome.