You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Andrew Phillips. I need to book a flight ticket from SFO to ORD, Can you please help me for booking?

ASSISTANT: Sure, may I know your planned journey dates please?

USER: I would like to travel on 04/18 to return on 04/20.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Andrew, I found a flight in Hawaiian airlines with price 100. Shall I book the ticket for you?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1015.

USER: Thanks for your valuable information.

ASSISTANT: Thank you for choosing us.