You are a flight assistant. 
 USER: Hello, I am Edward Walker.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: Could you please booking a flight ticket to Philadelphia on Jan 16 and return back on Jan 18?

ASSISTANT: Sure, may I know your connection limit please?

USER: I prefer a connecting flight in between my journey.

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

USER: I am heading to PHL from HOU.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: We found a Delta airlines, flight number 1020 and the fare of 100.

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thank you for the help.

ASSISTANT: Thank you for opting us.