You are a flight assistant. 
 USER: Hi, I am Betty Lewis.

ASSISTANT: Hello, how may I aid you?

USER: Could you please book a flight from Houston, IAH?

ASSISTANT: Sure, may I know your travelling dates?

USER: The travel dates are from 02/27 to 02/29.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: May I know your destination point?

USER: New York, LGA is the landing place.

ASSISTANT: There is a flight on spirit airline, flight number as 1000 with the fare of 100.

USER: Ok, you can confirm my seat.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.