You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Myself Charles Robinson. We friends were planning to go for a magic show at Philadelphia, so can you book me a ticket to PHL from PHX?

ASSISTANT: Sure, may I know your budget for this ticket?

USER: Sure, I can pay up to 5000.

ASSISTANT: Can you share your trip dates?

USER: Sure, my planning dates are 04/04 and 04/06.

ASSISTANT: There is no flight on your details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.