You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, welcome to airline services. How can I support you?

USER: My name is Raymond Scott and I want to attend the Religious festivals which is to be held at Los Angeles on 03/09.

ASSISTANT: Ok.

USER: Could you help me in ticket reservation with the 1 connection limit?

ASSISTANT: Sure, let me know your return date.

USER: I want to return with my parents on 03/11.

ASSISTANT: Can I have your airport codes please?

USER: My airport codes are from DCA to LAX.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Unfortunately there are no flights available with your requirement.

USER: Ok. Thank you for your kind information.

ASSISTANT: Thank you for approaching us.