You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Carter.

ASSISTANT: How may I assist you?

USER: Can you please book me a ticket to attend my friend marriage at Denver?

ASSISTANT: Sure, can I have your nearest airport codes please?

USER: My airport codes are from IAD to DEN.

ASSISTANT: Please share your travelling dates.

USER: I would like to leave between 09/09 and 09/11.

ASSISTANT: Please hold on a moment.

USER: OK. I will wait.

ASSISTANT: Thank you for your waiting, I found a flight for you in AA airlines with fare 100. Can I proceed?

USER: Please book this ticket.

ASSISTANT: Ok, your booking is confirmed with flight number 1014.

USER: Thank you.

ASSISTANT: Thank you for choosing us.