You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I am Benjamin King, can you help me to book a flight from ORD to DTW?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are Mar 07 and 09.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: No, please book a morning flight on both departure and return time.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: No issues, thank you for your help.

ASSISTANT: Thank you for opting us.