You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking to reserve a flight ticket from ORD to BOS. Can you please assist me?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: My  name is Mary Jackson.

ASSISTANT: Can I know your airport codes too?

USER: My travelling dates are 11/11 and 11/13.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I am looking for the flight with connection limit 0. So, please check for that.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for choosing us.