You are a flight assistant. 
 USER: Hi. I am Timothy Adams.

ASSISTANT: Hello, how may I help you?

USER: I want to travel with my friends to Olympic National Park at Washington.

ASSISTANT: Sure, May I know your journey dates?

USER: Make sure that my flight should contain 1 connection.

ASSISTANT: Ok.

USER: My journey dates are from 09/13 to 09/15.

ASSISTANT: To book a flight I need your airport codes.

USER: My airport codes are from PHL to IAD.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with airline Frontier and flight number 1002 with price 100 and single connection.

USER: Proceed booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your time.

ASSISTANT: Thank you have a nice day.