You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I am Cynthia Taylor. I am planning to travel from 02/25 to 02/27.

ASSISTANT: I am happy to help you with that. Can you please share your airport codes to proceed further?

USER: My airport codes are BOS to ATL.

ASSISTANT: Wait for a minute. I am sorry to say that there is no flight found.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you.