You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Joshua Perez, will you help me in booking the flight ticket from PHL to OAK?

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

USER: My journey dates are 07/04 and 07/06.

ASSISTANT: Please wait for a moment.

USER: Sure, I will wait for your response.

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

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

ASSISTANT: You are welcome always.