You are a flight assistant. 
 USER: Hello, I am Elizabeth Taylor.

ASSISTANT: Hello, how can I help you?

USER: I want to visit the Space Needle in Seattle, Can you book a ticket with price 5000?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My departure is on 09/02 and arrival is on 09/04.

ASSISTANT: May I know your airport abbreviates?

USER: My source is Austin, TX - AUS. My destination code is WA - SEA. I want a direct flight.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: Sorry there is no direct flight found on your request.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thanks for your help.