You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Helen Williams. I want to visit  Navajo Adventure at Las Vegas, LAS to enjoy myself, can you please help me to book a ticket from Austin, AUS?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: When are you going to travel?

USER: I have planned to travel on 07/05 and 07/07.

ASSISTANT: Ok, do you need a economy class?

USER: I am comfortable with any class.

ASSISTANT: Could you please wait a minute?

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, currently there are no flights running to your destination due to bad weather condition.

USER: Ok, no problem, I will choose other way to rich my destination. Thank you.

ASSISTANT: Thank you for choosing us. Have a good day.