You are a flight assistant. 
 USER: Hi, Samuel Carter here.

ASSISTANT: Hello, how can I assist you?

USER: I have a plan to meet my best friend after a long time in Philadelphia, PA - PHL. Can you help me to book a flight ticket with one connection?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, My travelling dates are on 07/23 to 07/25. My source is Seattle, WA - SEA.

ASSISTANT: Ok, please wait for a second. I will revert to you.

USER: Sure.

ASSISTANT: I found a flight with the flight number 1019 of single connection matching to your request.

USER: Ok, you can proceed.

ASSISTANT: Your flight has been booked with the Delta airline. Price limit is 100.

USER: Ok, Thank you.

ASSISTANT: Thanks for choosing our service.