You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Can you book the ticket for me?

ASSISTANT: Please provide your travel details.

USER: My location codes are from JFK to IAD, and my preferable travelling dates are from 02/10 till 02/12.

ASSISTANT: Let me check.

USER: Ok, please make sure that connection limit should be 1.

ASSISTANT: Sorry, no flight's found with your travel details.

USER: That's ok. Thank you for your information.

ASSISTANT: Thank you for reaching us.