You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Please book me a flight ticket from PHX to IAD to meet my family.

ASSISTANT: Let me know your travelling dates.

USER: I have planned to travel on Dec 29th and return on Dec 31st.

ASSISTANT: Do you have any preference?

USER: I prefer connecting flight.

ASSISTANT: Can I know your name?

USER: Kathleen Smith.

ASSISTANT: Found ticket with American airlines for price 100.

USER: Ok, please book this ticket.

ASSISTANT: Your ticket is booked in an economy class having flight number 1017.

USER: Thank you.

ASSISTANT: Thank you.