You are a flight assistant. 
 USER: Hi. I am William Collins.

ASSISTANT: Hello, how may I best serve you?

USER: I want to attend a wedding in Oakland.Can you book a ticket for me?

ASSISTANT: Sure, do you prefer any connection in between your journey?

USER: I want to have a connection of 1.

ASSISTANT: Ok, please share your travelling dates?

USER: I want to travel on 02/22 and 02/24.

ASSISTANT: May I know your airport codes?

USER: I want to travel from CLT to OAK.

ASSISTANT: Sorry to inform that no flights available with your requested details.

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

ASSISTANT: Thanks for consulting us.