You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Andrew Walker.

ASSISTANT: How may I aid you?

USER: I need to attend The Armory Show in San Francisco, SFO. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know when you want to travel?

USER: My journey start on 03/05 and intend to return back on 03/07.

ASSISTANT: Do you need any restrictions on fare limit?

USER: Yes, price should be up to 5000.

ASSISTANT: Can you please help me with your boarding point?

USER: My boarding point is Philadelphia, PHL.

ASSISTANT: We are please to inform you that we have found a flight with an airline UA of flight 1003 and fare is 100. Can I proceed with the booking?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us.