You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, How can I serve you?

USER: I am Karen Edwards. I would like to attend a training session for new project at my main branch at Boston, BOS. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: My source is from Las Vegas, LAS.

ASSISTANT: Please help me with your travel dates.

USER: I want to travel on 07/30 and return on 08/01.

ASSISTANT: Sorry, No flights found with your chosen dates. Thank you for availing us.

USER: Not an issue, thank you for the information.