You are a flight assistant. 
 USER: Hello, I am Patricia King.

ASSISTANT: Hello,. How may I assist you?

USER: I am planning to attend for a Cultural program in Phoenix, so please book a flight ticket from TX - HOU to AZ - PHX.

ASSISTANT: Could you please specify your travelling dates?

USER: My departure day is 01/11, return day is 01/13.

ASSISTANT: Connecting flight can be booked with airline UA having flight number 1000, price is 100. Shall I book a ticket?

USER: You can proceed to booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.