You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Linda Adams, I want to book a flight ticket, my preferable airport codes are from PHL to JFK. Can you please help me?

ASSISTANT: Sure, could you please provide me with your dates of journey?

USER: My respective travel dates are from 06/03 to 06/05.

ASSISTANT: Please wait for a moment.

USER: Ok, I will wait for response.

ASSISTANT: Sorry Linda, there is no flight found as per your travelling details.

USER: That's fine, no problem. Thank you for searching.

ASSISTANT: You are welcome always.