You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am George Moore, and I need to travel to Charlotte CLT to enjoy Innovation festivals. Can you make a reservation from SFO?

ASSISTANT: Sure, please share me your travelling dates?

USER: Sure, I need to travel on 05/17 and 05/19.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, to inform you that there is no flight found with your specifications.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.