You are a flight assistant. 
 USER: Hello, I am Matthew Gonzalez.

ASSISTANT: Hello, how shall I assist you?

USER: I am planning to attend Death Valley Adventure in Dallas, Can you book me a ticket with a single connecting flight?

ASSISTANT: Sure. Please provide me airport codes?

USER: My airport codes are WA - SEA and TX - DFW. I start on 05/15 and return on 05/17.

ASSISTANT: Flight can be booked with airline Delta, price 200. Flight number is 1004 with connections 1.

USER: You can proceed for booking.

ASSISTANT: Ticket is booked. Thanks.