You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Timothy Campbell. Could you please check the flight availability on 10/18?

ASSISTANT: Sure, please provide me your journey codes and return date.

USER: Because of a urgent meeting, I have to fly to Philadelphia, PA - PHL from Seattle, WA - SEA. And I will recur on 10/20. I am hoping that the price limit is within 200 with maximum single connection.

ASSISTANT: There is a flight matching your specification with flight number 1003 and airline UA. Sure, the cost of the ticket is 100. Can I go on with booking?

USER: Yes, you can.

ASSISTANT: Sure, your booking is confirmed. Hope you have a great meeting ahead.

USER: Thanks for your kind service.