You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Smith.

ASSISTANT: How can I assist you at this moment?

USER: Can you help me booking flights on these dates 09/14 and 09/16, because I have important meeting with my clients?

ASSISTANT: Sure, can you please provide your travelling airport codes?

USER: My origin airport code is AUS and destination airport code is LGA.

ASSISTANT: Patrick Smith, there are no flights available on your provided dates.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your services.