You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket to Washington, DCA to participate in Olympics.

ASSISTANT: Can I know your travelling dates?

USER: My travelling dates are Sept 22 and Sept 24.

ASSISTANT: Please let me know your class preference?

USER: I prefer economy class.

ASSISTANT: Please let me know your source airport code?

USER: My source airport code is SFO.

ASSISTANT: May I know your connection limit?

USER: I want single connected flight.

ASSISTANT: May I know your name?

USER: Sure, I am Brenda Adams.

ASSISTANT: Here is a connecting flight with fare 100 and 1026 as flight number in economy class. Shall I proceed with booking?

USER: Ok, please confirm.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.