You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER:  I am Robert King want to fly to PA-PHL to meet my cousins.

ASSISTANT: Ok.

USER: Could you book a ticket on 01/11?

ASSISTANT: Sure, what is your source airport?

USER: I will depart from CA-OAK.

ASSISTANT: Please share your return date?

USER: I will return on 01/13.

ASSISTANT: Do you have any connection limit?

USER: I need a  single connection.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight found with Frontier airline of flight number 1003. Shall I proceed for booking?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thanks for choosing us, have a great journey.