You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from CLT to DTW?

ASSISTANT: Sure, may I know your planned travelling dates please?

USER: My planned travel dates are Jan 22-24.

ASSISTANT: Ok, may I know your name please?

USER: Myself, Susan Thomas.

ASSISTANT: May I know your class preference please?

USER: I do not have any preferences.

ASSISTANT: May I know your preferable time for journey?

USER: I am comfortable to fly in any timings.

ASSISTANT: Sorry Thomas, there is no flight found as per your travelling dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.