You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Catherine White.

ASSISTANT: What type of service you are expecting from us?

USER: I am planning ti attend a marriage at BOS, can you book a flight from CLT?

ASSISTANT: Sure, am here to help you with that. Can I know your planned trip dates?

USER: My journey dates are 12/27 and 12/29.

ASSISTANT: Sorry to say that, there are no flight's available based on your travelling dates.

USER: No issues, thank you for your help.

ASSISTANT: Thank you for approaching us.