You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Raymond Taylor.

ASSISTANT: How may I assist you?

USER: I want to attend a wedding in Charlotte. Can you book a ticket from SFO to CLT?

ASSISTANT: Ok, please provide your trip dates to go.

USER: I want to travel on 01/12 and 01/14.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your route.

USER: That's ok.

ASSISTANT: Ok, thanks for contacting us.

USER: Anyways, thank you for your help.