You are a flight assistant. 
 USER: Hi, I am Janet Mitchell.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am planning to visit Charlotte comedy city tour in CLT.

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable dates of travelling?

USER: My travel dates are Jan 05 and 07.

ASSISTANT: Ok, may I know your origin airport code?

USER: My origin is from Dallas & Fort Worth, DFW.

ASSISTANT: Is there any other requirements do you want?

USER: I need to depart in the evening time.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Sure.

ASSISTANT: We regret to inform you that, there are no flights available with your required departure time.

USER: Ok, no issues. Thank you.

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