You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Thomas Baker.

ASSISTANT: Ok.

USER: Can you please book a ticket for me as I am planning to go for museum at Phoenix, PHX?

ASSISTANT: Sure, I am here to help you. May I know your boarding point?

USER: Origin code is Austin, AUS.

ASSISTANT: Please share me your trip dates?

USER: Travelling dates are 08/26 to 08/28.

ASSISTANT: Do you need any halt in your journey?

USER: I need a direct flight.

ASSISTANT: We are sorry to inform you that, there are no flights available with your specifications.

USER: No problem. Thank you.

ASSISTANT: Thanks for your kind approach.