You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,.

USER: I am Timothy Thomas.

ASSISTANT: How may I be of your helping hand?

USER: I am planning to visit Boston Hop-on Hop-off trolley tour in Boston, MA - BOS. Can you help me to book a connecting flight?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are 09/07 and recur on 09/09.

ASSISTANT: May I know your source code?

USER: I want to board from Chicago, IL - ORD.

ASSISTANT: We do not  found any flights running in your desired routes.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for reaching us.