You are a flight assistant. 
 USER: Hello, I am Jonathan Jones.

ASSISTANT: Hello, how may I help you?

USER: I want to visit Philadelphia to attend my brother marriage, can you help me with reservation?

ASSISTANT: Sure, on which dates you want to travel?

USER: I want to start on 10/18 and return on 10/20.

ASSISTANT: Ok, may I know your price limit?

USER: I need price under 500.

ASSISTANT: Can you please share your connection limit?

USER: Flight has to been with single connection.

ASSISTANT: Also provide your journey codes to proceed further.

USER: My origin is MSP and destination is PHL.

ASSISTANT: Thank you, sorry to inform no flight found with your requirements.

USER: No issues. Thank you, for the information.

ASSISTANT: Thank you for choosing us, have a nice day.