You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Patricia Gonzalez, can you help me to book a flight within 500 price limit?

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are 04/19 and 04/21.

ASSISTANT: Ok, can you please your airport codes?

USER: My airport codes are LAS and SEA, so please book a flight to my preferred location.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight with your provided information in UA airline with 1 connection and the fare is 100. Shall I confirm your ticket with this airline?

USER: You can proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.