You are a flight assistant. 
 USER: Hello. I am Paul Young.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to travel from SEA to PHL. Can you please help me to book a ticket?

ASSISTANT: Sure, I am here to help you. May I know when you want to travel?

USER: I want to travel on 07/03.

ASSISTANT: Ok, please share your fare limit.

USER: I can afford upto 5000.

ASSISTANT: When are you willing to return?

USER: I intend to return on 07/05.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Ok, not an issue.

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

USER: Thank you.