You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Nicholas White.

ASSISTANT: Nice to meet you Nicholas White.

USER: I want to attend my boss wedding, can you book me a ticket.

ASSISTANT: Sure, please provide your trip details.

USER: My airport codes will be from SFO to DTW. 09/11 to 09/13 are my dates of travel.

ASSISTANT: Sorry for the inconvenience, there is no flights for you.

USER: No issues. Thanks for checking.

ASSISTANT: Thank you for reaching us.