You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Joshua Campbell here. Can you please book a flight ticket from LAX to JFK?

ASSISTANT: Sure, can you please share me with your dates of journey?

USER: Sure, my travelling dates are from 07/06 to 07/08.

ASSISTANT: Please wait for a moment.

USER: Ok, take your time.

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

USER: That's ok, no problem. Anyway thank you for the information.

ASSISTANT: You are welcome always.