You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to book a flight from SEA to IAD for visiting new Washington aquarium for research on fishes.

ASSISTANT: May I know your trip dates?

USER: My trip dates are 01/18 and 01/20.

ASSISTANT: Ok, may I know your connection limit?

USER: Connection must be 1.

ASSISTANT: Ok, let me know your name in the meanwhile?

USER: Paul Mitchell here.

ASSISTANT: There is no connecting flight for you Paul Mitchell.

USER: It's ok, thanks for your information.

ASSISTANT: Thanks for reaching us.