You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need a reservation on the route from Oakland to Detroit, can you please help me?

ASSISTANT: Sure, help me with the travelling dates.

USER: My travelling dates will be from 10/15 to 10/17.

ASSISTANT: For quick process, can you share your airport codes?

USER: My source airport code is OAK and destination code is DTW.

ASSISTANT: May I know your name? There is a flight with number 1027 and connection is 0.

USER: Myself William Brown.

ASSISTANT: Can I book it?

USER: Make sure my connection limit is only 1. Please do not book it.

ASSISTANT: Sorry, there is no flight with 1 connection. Thank you for reaching us.

USER: Thank you for assisting me.