You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you?

USER: I am planning to visit Los Angeles, CA - LAX along with my friends. Can you help me to book a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My trip dates are 02/06 and recur on 02/08.

ASSISTANT: Can I know your source code?

USER: My source is from Denver, CO - DEN.

ASSISTANT: Let me know your name.

USER: I am Catherine Nelson.

ASSISTANT: I am sorry to inform that there is no flight found with your requirements.

USER: Ok, no issues.

ASSISTANT: Thank you.

USER: Thanks for your service.