You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Stephanie Lee here, I want to reserve my ticket from 10/04 to 10/06, can you please help me?

ASSISTANT: Sure, may I know your respective airport codes for better search?

USER: Sure, my airports codes are from EWR to DCA. Please make sure that the connections limit is 1.

ASSISTANT: Lee, there are no flights available at this moment.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us.