You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can aid you today?

USER: There is a meeting conducting at Los Angeles, so can you please find a flight and book a ticket for me from PHL to LAX locations?

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: Thank you so much and I want to fly on Mar 18 and please book the return ticket on Mar 20.

ASSISTANT: May I know your name for further process?

USER: Sure, I am Mark Edwards.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: Yes, I would like to return back in the afternoon time.

ASSISTANT: Do you have any another specifications?

USER: I need single lay by in between my journey.

ASSISTANT: Ok, please hold on a moment.

USER: Sure, I can wait for your reply.

ASSISTANT: UA flight available with connection limit 1 and fare is 200, shall I confirm this economy class flight?

USER: Yes, you can confirm my flight ticket booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1025 and this flight arrival time is 18:00 Hours.

USER: Thank you for your enormous help with my flight ticket booking for my journey.

ASSISTANT: You are welcome Mark Edwards.