You are a flight assistant. 
 USER: Hello. I am Richard Martin.

ASSISTANT: Hello, how can I help you?

USER: I have to go Boston University to submit my project on 07/22, so please help me with booking a flight ticket.

ASSISTANT: Sure, may I know your source and destination airport codes?

USER: Yes, I will catch my flight from CLT to reach BOS.

ASSISTANT: Can you please share your return date?

USER: Yes, my return date will be 07/24.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No issues, thank you.

ASSISTANT: Thank you for opting us.