You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name?

USER: Emily Martin here.

ASSISTANT: Yes Emily, what can I do for you?

USER: I want to book a ticket from CLT to IAD, will you help me over that?

ASSISTANT: Sure, may I know your preferable dates?

USER: I would like to travel on 03/23 to 03/25. Make sure connection limit should be 1.

ASSISTANT: Sorry Emily, there is no flight found with your requirements. Thank you for choosing us.

USER: Ok, no issues. Thank you for your help.