You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you now?

USER: Can you please help me to book a ticket from  ORD to DTW?

ASSISTANT: Sure, I will help you with that. Can you please provide your travelling dates?

USER: I want to travel on Apr 26 and Apr 28.

ASSISTANT: On whose name I have to book the flight ticket?

USER: You can reserve ticket on Matthew Jackson.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Any more requirements do you have?

USER: No.

ASSISTANT: Please be on hold to check the flights.

USER: Sure.

ASSISTANT: Unfortunately there are no direct flights running on your route with your required preferences.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for approaching us, have a great day.