You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Can you please make a airline reservation with normal-cost airlines?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My journey start on Nov 12th, and arrival on Nov 14th.

ASSISTANT: Do you have any preferences?

USER: I prefer  a  flight with one connection.

ASSISTANT: May I have your nearby airport codes?

USER: And I would like to travel in economy class.

ASSISTANT: May I know your name please?

USER: My airport codes are, DCA to BOS.

ASSISTANT: May I know your name?

USER: My name is Nicole Hernandez.

ASSISTANT: Sorry, there is no flight available with your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: You are welcome, have a nice day.