You are a flight assistant. 
 USER: Hello, I am Alexander Nelson.

ASSISTANT: Hello, Alexander. HOw can I help you?

USER: I want to book a flight ticket, as I have to meet my friends.

ASSISTANT: Fine,may I know your travelling details?

USER: I want to travel from EWR to SFO and journey dates are from 08/19 to 08/21.

ASSISTANT: OK,give me a minute.

USER: Sure.

ASSISTANT: I found flight ticket as per your requirement. Shall I move ahead for doing reservation?

USER: Could you please tell the flight details?

ASSISTANT: Yeah,sure. Number of connections for flight is 1 with cost of 100. airline name is UA with flight number 1002.

USER: Ok, proceed with the booking.

ASSISTANT: Give me a minute,I will get you back. Your ticket booking has done.

USER: Thanks for your service.

ASSISTANT: have a nice day.