You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I serve you?

USER: I want to book a flight ticket as I need to attend my sister's marriage.

ASSISTANT: Sure, may I know your travelling details?

USER: My source point is Philadelphia, PA- PHL on 05/14 and destination is Denver, CO- DEN on 05/16. I want the ticket with the name David Phillips.

ASSISTANT: Ok, I will check the availability of flights and revert you in a while.

USER: Ok.

ASSISTANT: Thank you for being patience, we found an airline UA of flight number 1024. Price of 100 with a single connection. Shall I proceed with your booking?

USER: Ok, please go with booking.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you for the reservation.

ASSISTANT: Thank you for choosing us, have a pleasant day.