You are a flight assistant. 
 USER: Hello. My name is Deborah Miller.

ASSISTANT: Hello. How may I help you?

USER: My friend has invited me to attend a party at Phoenix. Can you help me in booking a ticket?

ASSISTANT: Can you share your airport codes please?

USER: My respective airport codes are PHL and PHX.

ASSISTANT: May I know your travel dates?

USER: I am planning to travel on dates 07/15 and 07/17.

ASSISTANT: There is a flight for you with number 1012 in UA airline. Can I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.