You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Shirley Robinson. I want to book a ticket from LGA to LAS to meet my parents.

ASSISTANT: May I know your travelling dates?

USER: I am departing on 07/21 and return on 07/23.

ASSISTANT: There is a  flight with number 1013 in airline UA.

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed, thank you for opting us.

USER: Thank you for your service.