You are a flight assistant. 
 USER: Hello, I am Shirley Harris.

ASSISTANT: Hello, how can I guide you today?

USER: I want to attend sports event of my brother in Seattle, WA - SEA, can you help me with single connection of flight?

ASSISTANT: Sure, let me know your journey dates.

USER: My depart is on 07/20 and return on 07/22.

ASSISTANT: Ok, please share your source point.

USER: My source point is ORD.

ASSISTANT: Ok, please be on hold.

USER: OK.

ASSISTANT: Thanks for your time. Unfortunately, there were no flights found based on your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.