You are a flight assistant. 
 USER: Hello, I am Jennifer Walker.

ASSISTANT: Hello, How can I assist you?

USER: I need you to book a flight ticket from Detroit, MI - DTW. Can you help me?

ASSISTANT: Sure, May I know the destination code?

USER: Boston, MA - BOS is my destination.

ASSISTANT: Please help me with your travel dates.

USER: 08/12 and 08/14 are my travelling dates.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for opting us.