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

ASSISTANT: Hello, how can I help you today?

USER: I need to visit Seattle, WA - SEA for background verification in a company. So help me in booking a flight ticket ?

ASSISTANT: Sure, when are you willing to travel?

USER: I need to travel on 02/01 and return on 02/03.

ASSISTANT: Ok, let me know your departure airport code?

USER: I need to start my journey at Chicago, IL - ORD.

ASSISTANT: Ok, any other specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please hold on a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your service.