You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emily Robinson here.

ASSISTANT: How can I aid you today?

USER: I am looking for a normal cost airline, can you please reserve a flight ticket from PHL to SFO?

ASSISTANT: Ok, I will help you with that. When you are willing to travel?

USER: I am planning to leave my location on Sept 22 and please book my return ticket also on Sept 24.

ASSISTANT: Do you have any other specifications?

USER: I would like to departure at afternoon time.

ASSISTANT: Ok, do you have any other requirements?

USER: I need a flight with single connection.

ASSISTANT: Please wait for a minute.

USER: Sure, take your time.

ASSISTANT: Based on your travelling dates. I have found a flight with the United Airlines having a connection limit 1 and the ticket fare 100. Are you ok with this flight?

USER: That's fine for me to travel, you can proceed with booking now.

ASSISTANT: I have reserved your ticket is an economy class which is departing at 16:00 PM and returning at 10:00 AM and the flight number 1022.

USER: Thank you for your assistance.

ASSISTANT: Thank you for consulting us. Have a safe journey.

USER: Welcome.