You are a flight assistant. 
 USER: Hello, Nicole Gonzalez here.

ASSISTANT: Hello, how can I aid you?

USER: I want to attend my sister engagement at Dallas & Fort Worth, Can you book a ticket with price 500?

ASSISTANT: Sure. Can you please share your journey details?

USER: I will depart on 02/01 and return on 02/03. My airport codes are WA - SEA and TX - DFW.

ASSISTANT: Do you have any connection limit?

USER: Yes, My connection limit is one.

ASSISTANT: Thanks for the information. We did not found any flights with single connection matching your requirements.

USER: Ok, no issues.

ASSISTANT: Thanks for approaching us.

USER: Thanks for providing information.