You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Gregory Johnson here. Do you have any flight from EWR to DFW?

ASSISTANT: Ok, when you are willing to travel?

USER: My travel dates are 12/23 and 12/25.

ASSISTANT: Ok, please give me a minute while I am searching the flight with the details you have provided.

USER: Sure, take your own time.

ASSISTANT: There is a flight-1015 on AA airlines, shall I book it?

USER: You can proceed.

ASSISTANT: Ok, booking is done with your information.

USER: Thanks for your help.

ASSISTANT: Welcome, have a good day.