You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Eric Jackson.

ASSISTANT: How may I help you?

USER: I would like to book a ticket to Oakland, can you please help me in booking the ticket from PHL to OAK?

ASSISTANT: Do you need any halt in between your journey?

USER: I need a halt.

ASSISTANT:  May I know the period of your journey?

USER: Can I know you want me to give me the duration of journey?

ASSISTANT: Yes, please provide your journey dates.

USER: I am travelling on these dates July 29th and 31st.

ASSISTANT:  What is your fare estimate for this booking?

USER: I have a price 200.

ASSISTANT: According to your criteria, there is a connecting flight-1012 with price 100. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: Ok, booking is done on Southwest airlines.

USER: Thank you for your services.

ASSISTANT: Thanks for choosing us, have a safe trip.