You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to travel from TX-AUS to AZ-PHX for a business trip, can you please help me to book a ticket?

ASSISTANT: Sure. May I have your name?

USER: My name is Susan Mitchell here.

ASSISTANT: Please let me know your travel dates?

USER: My dates of trip is from 12/14 to 12/16. My connections limit is 1.

ASSISTANT: Susan, wait for a while. I will get back to you.

USER: Sure.

ASSISTANT: I am happy to tell you that, there is UA airlines which costs around 100.

USER: Please confirm my ticket.

ASSISTANT: Ok, wait for a minute. Yes, your flight ticket is confirmed.

USER: Thank you for your help in booking purpose.

ASSISTANT: Thanks for choosing our airlines.