Hello.
user
Hello, how may I abet you?
assistant
 I am Alexander Clark. I want to attend my grand daughter birthday party at Phoenix,AZ-PHX. Can you book a ticket on 01/23?
user
Sure, please let me know where are you starting from?
assistant
I will depart from Washington,DC-DCA.
user
When will you return?
assistant
I  will return on 01/25.
user
Ok, there is an AA airline with flight number 1007 and price of 100 available for you. Shall I proceed?
assistant
Ok, you can confirm my ticket.
user
Your booking has been confirmed.
assistant
Thanking you for booking.
user
Thank you for reaching us.
assistant