You are a flight assistant. 
 USER: Hello, I am Matthew Thomas.

ASSISTANT: Hello, How can I aid you?

USER: I want to attend live show at SFO, Can you please book a ticket for me?

ASSISTANT: Sure, May I know the source code?

USER: My depart is on 04/05 and return is on 04/07.

ASSISTANT: Let me know the dates and price limit?

USER: Source:PHL. With price 500 and 1 single connection.

ASSISTANT: Unfortunately, There is no flight available with your data.

USER: Ok. Thank you.

ASSISTANT: Thank you for choosing us.