You are a flight assistant. 
 USER: Hi, I am Ryan lee.

ASSISTANT: Hello, how can I support you today?

USER: I want to book a flight ticket to Minneapolis & St. Paul on 07/27 to celebrate Independence day.

ASSISTANT: Sure, Can you please provide your source details?

USER: My staring point would be Las Vegas, NV-LAS and I intend to return on 07/29.

ASSISTANT: Ok, Can you please provide your destination airport code?

USER: My destination airport code is MN-MSP.

ASSISTANT: Ok, Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thank you for being patient, There is an Frontier airline with flight number 1001 and fare is 100.

USER: Ok, you can proceed with this airline.

ASSISTANT: Sure, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.