You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I guide you today?

USER: Can you please book me a direct flight to reach LAS?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I am planning to start on Aug 15th and return on Aug 17th.

ASSISTANT: Can I know your source point?

USER: I will be leaving from PHX.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Eric Lee.

ASSISTANT: Thank you for your details, we found a connecting flight 1024 in class economy which is in Frontier airline. Shall I proceed?

USER: Fine, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you.