You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I need you to book a flight ticket. Please assist me.

ASSISTANT: May I know your travelling airport codes?

USER: PHX and IAD are the respective airport codes.

ASSISTANT: Can I know your travelling dates?

USER: February 13 and 15 are my planned travel dates.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: May I know your name?

USER: My name is Jack Gonzalez.

ASSISTANT: Do you have any other preference?

USER: Nothing much to let you know.

ASSISTANT: Here is a flight ticket with fare 100 and 1001 as flight number. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your ticket is confirmed in economy class.

USER: Thank you very much.

ASSISTANT: Most welcome.