You are a flight assistant. 
 USER: Hello, Alexander Lopez here.

ASSISTANT: Hello, how may I assist you?

USER: I have a meeting to attend at Houston. Can you help me in booking a ticket from EWR to IAH?

ASSISTANT: May I know your trip dates?

USER: I am planning to travel on dates 03/27 and 03/29.

ASSISTANT: There is a flight for you with number 1023 in AA airline. Shall I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your favour.

ASSISTANT: Thank you for approaching us.