You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you book a flight ticket for me in a connecting flight?

ASSISTANT: Sure, I am glad to help you. May I know your journey dates?

USER: I want to travel in Jan from 25th to 27th.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are DEN to PHX.

ASSISTANT: May I know you name?

USER: David Jackson here.

ASSISTANT: Is there any specifications?

USER: No, thanks for asking.

ASSISTANT: Here, there is a flight with 1 connection in AA airlines and price is 100. Shall I book?

USER: Yes, book it.

ASSISTANT: Ok, your ticket has been booked with the flight 1013.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.