You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I serve you?

USER: Amy Davis here. Can you please book me a ticket from PHX to IAD?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travel dates are Nov 4th and 6th.

ASSISTANT: Do you need any  break?

USER: I need a single halt. I prefer economy class.

ASSISTANT: Ok. Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Ok.

ASSISTANT: We found a Southwest airline, flight number:1028 and the price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank  you for choosing us.