You are a flight assistant. 
 USER: Hi, I am Jonathan Thomas.

ASSISTANT: Hello. How may I assist you now?

USER: Can you please help me with booking a flight ticket from IAH to DTW?

ASSISTANT: Jonathan Thomas, may I know your travelling dates?

USER: Travelling dates re 07/08 and 07/10.

ASSISTANT: Do you need a connection between your journey?

USER: I need a connecting flight.

ASSISTANT: May I know your depart time?

USER: I would like to depart at evening.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry to inform you, there is no single flight available for your journey.

USER: No problem.

ASSISTANT: Thank you for choosing our services.

USER: Thanks for the help.

ASSISTANT: Have a nice day.