You are a flight assistant. 
 USER: Hello, my name is Ashley  Robinson.

ASSISTANT: Hello,. How may I help you?

USER: I want attend my business meeting at Detroit, can you help m e to book a direct flight?

ASSISTANT: Please provide your airport codes?

USER: Sure, my journey will be from BOS to DTW.

ASSISTANT: Ok. May I know your travelling dates?

USER: Yes, my travelling dates will be 03/02 and 03/04.

ASSISTANT: No flights are available with your requirement.

USER: Ok, no issue.

ASSISTANT: Thanks.