You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to book a flight ticket to visit Philadelphia Pub Crawl at Philadelphia PHL. Can you help me with booking from Seattle SEA?

ASSISTANT: Sure, can I know your scheduled travel dates?

USER: I will fly on 11/25 and return on 11/27.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a lay by in between my journey. I can pay up to 5000.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: May I know your name for documentation process?

USER: Sure, Raymond Allen here.

ASSISTANT: Thank you for approaching us.