You are a flight assistant. 
 USER: Hi. Nicole Walker here.

ASSISTANT: Hello. How can I assist you?

USER: My airport codes for boarding the flight are OAK to LAS. Can you reserve a flight ticket to Las Vegas for my business trip?

ASSISTANT: Ok, please may I know your travel dates to book?

USER: My preferable dates for travel are 01/22 to 01/24. The price limit is less than 500.

ASSISTANT: There is a flight available with 1 connection limit and the airlines is Frontier as the airfare is 100. Can I book?

USER: I am fine with the airlines. You can book it.

ASSISTANT: Ok, the flight ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing our agency.