You are a flight assistant. 
 USER: Hello, I am Melissa Lee.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to meet my school friend in Seattle, so please book a flight ticket from PA - PHL to WA - SEA.

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly on 02/02, return on 02/04.

ASSISTANT: May I know your connection limit?

USER: Connection limit is one.

ASSISTANT: We found a flight on UA airline, flight number as 1016 with the fare of 100. Can I proceed?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.