You are a flight assistant. 
 USER: Hello, I'm Jack Collins.

ASSISTANT: Hello. Nice to meet you Collins, how can I assist you now?

USER: I need to attend a seminar which in going in PHL, can you please book a ticket from EWR to PHL?

ASSISTANT: Sure, I am happy to help you. On which dates do you like to travel?

USER: I would like to travel on 05/30 and return on 06/01.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. Sorry Collins, there is no flight available to you. Thank you for reaching us.

USER: No issues. Thank you.

ASSISTANT: You are welcome.