You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Timothy Harris.

ASSISTANT: How may I guide you?

USER: I am looking for a flight to Charlotte, can you book me the flight ticket from DTW to CLT?

ASSISTANT: Timothy Harris, I am here to help you for this. When you are planning to travel?

USER: My trip dates are from October 4th till October 6th.

ASSISTANT: Do you have any airline preference?

USER: I need a flight in business class only.

ASSISTANT: Please wait for a while.

USER: I need a connecting flight.

ASSISTANT: Sorry to inform that, no flights are found with your criteria.

USER: That's ok, not an issue. Thank you for your information.