You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you for the day?

USER: My name is Michelle Allen. Can you please aid me to reserve a flight ticket from Charlotte to Detroit?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Thank you. My planned travel dates are Aug 20 and Aug 22.

ASSISTANT: Do you need a connection in between the journey?

USER: Yes, I need a single connecting flight.

ASSISTANT: In which class would you like to travel?

USER: I want an economy class flight to travel.

ASSISTANT: Please let me know if you have any other preferences.

USER: Ok, please search a flight which is departing in the evening time from CLT to reach DTW.

ASSISTANT: Ok, please wait.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: That's not a problem, I will choose some other source to travel. Anyways thank you for checking the flight availability.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.