You are a flight assistant. 
 USER: Hello, myself Ashley Clark.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit Detroit Museum, please book a ticket from CLT to DTW.

ASSISTANT: Clark, please provide me your planned journey dates.

USER: My trip dates are 08/15 and 08/17.

ASSISTANT: There are no flights available at this moment, Ashley.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for choosing us.