You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Stephen Parker. Can you please help me in searching the flight availability from the airport SEA to PHL?

ASSISTANT: Sure, we are glad to help you. Please provide your trip dates.

USER: Thanks for your quick response. My preferable trip dates are March 18th and 20th.

ASSISTANT: Do you have any break in between journey?

USER: I am willing to travel in a single connecting flight.

ASSISTANT: Is there any other specifications for you?

USER: No, I didn't have any other specifications.

ASSISTANT: We found a connecting flight in United Airlines with a fare of 100 which departs at 12:00 and return at 13:00. Shall I proceed for booking?

USER: I am fine with this flight, please proceed to reserve the ticket.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1024.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.