You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Mary Taylor.

ASSISTANT: How can I assist you?

USER: I am planning to go for Houston - IAH  to meet my friends. So, please help me in booking my flight ticket from Chicago - ORD?

ASSISTANT: Sure, can I know your travel dates please?

USER: I want to start my journey on 08/23 date and my return date is 08/25.

ASSISTANT: Ok, wait a moment please.

USER: Ok, sure. I will wait for your reply.

ASSISTANT: There is a flight in Delta airline with price 200, can I book it?

USER: Ok, I will go with in this flight. So, you can proceed for reserving my ticket in Delta airline.

ASSISTANT: Your ticket has been booked with flight number 1010.

USER: Thank you for your help in booking my flight ticket.

ASSISTANT: Thank you for approaching us.