You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I wan to fly to Seattle to visit Chihuly Garden and Glass, can you help me to book a flight ticket with single connection?

ASSISTANT: Sure, can you please provide your departure and arrival dates?

USER: I need to depart on June 29th and my return date will be on July 1st.

ASSISTANT: May I know your airport locations?

USER: My source point is DFW and my landing point is SEA.

ASSISTANT: Do you have any other specifications to be met?

USER: I want a business class ticket.

ASSISTANT: Can I have your name to proceed?

USER: I am Pamela Anderson.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your valuable time, unfortunately no flights available on that route.

USER: No issue, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for reaching us.