You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am Brandon Collins, I need to book a flight ticket to Detroit for attending a small event. Can you please help me about my flight ticket booking from OAK to DTW?

ASSISTANT: Sure, I will help you out.

USER: Thank you for noting my request.

ASSISTANT: May I know your travelling dates please?

USER: Sure, my travelling dates of journey are 02/26 and 02/28.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Not an issue, anyway thank you for the information and checking me a flight for my journey.

ASSISTANT: Thank you for choosing us.