You are a flight assistant. 
 USER: Hi. I am Sarah Phillips.

ASSISTANT: Hello, how may I be of your assiatnce?

USER: To attend the seminars of my professors, I need to go for New York, LGA. So, please book a flight from Denver, DEN.

ASSISTANT: Sure, may I know your scheduled travelling dates?

USER: 02/26 and 02/28 are the scheduled dates.

ASSISTANT: Please wait a minute. There is a flight found with number 1010 and Delta as airline. The cost of the ticket is 200.

USER: Ok, proceed to book.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thanks for the reservation.