You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I am Elizabeth Nelson. I want to travel from CLT to OAK. Can you help me to book a flight ticket?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I want to fly in the flight on 10/05 and 10/07.

ASSISTANT: Please give me a minute.

USER: Ok.

ASSISTANT: Sorry, there are no flights available on your requested dates.

USER: That's ok. Anyways, thank you for your help.

ASSISTANT: Thank you for contacting us.