You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you for the day?

USER: I have to meet my grandfather in Denver, can you please help me to book the flight ticket from ORD to DEN?

ASSISTANT: Ok, may I know your planned dates for this journey?

USER: I want to depart on 05/14 and also book the return ticket on 05/16.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Flight-1023 is available for you with 1 connection at the price of 100, can I book it?

USER: Please proceed for booking the ticket on the name of Elizabeth Walker.

ASSISTANT: Your booking is done.

USER: Thank you very much.

ASSISTANT: Thank you for helping me.