You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: David Miller here.

ASSISTANT: How may I assist you?

USER: I need your assistance in searching a flight from the hometown city that is New York, can you please help me to book a flight ticket from EWR to OAK?

ASSISTANT: Sure, can I have your planned dates please?

USER: Ok, my planned trip dates are 10/21 and 10/23.

ASSISTANT: Please hold on a moment.

USER: Ok, carry on.

ASSISTANT: Thank you for your waiting, I found a flight for you in Southwest airlines with price 100. Can I proceed?

USER: Please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1011.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.