You are a flight assistant. 
 USER: Hi. I am Christopher Walker.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I have an appointment with my client in Seattle, can you please help me in booking a flight ticket with single connection?

ASSISTANT:  Sure, we are here to make your journey comfort. Can you please let me know your travelling dates?

USER: 11/19 and 11/21 are my planned travelling dates.

ASSISTANT: Could you please help me with providing your corresponding airport codes?

USER: I want to start from Philadelphia, PA-PHL to reach Seattle, WA-SEA.

ASSISTANT:  Flight Check Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Ok, you can book the ticket.

ASSISTANT: Thanks for waiting, we are pleased to inform you that, we have found airline, flight number 1012, 2 stopover and the ticket fare is 300.

USER: Thanks for being my helping hand in booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.