You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what service you are expecting from us?

USER: I am planning to attend a Software Development Conference in EWR, can you find a ticket for me?

ASSISTANT: Sure, I will check the flights available.

USER: Ok.

ASSISTANT: May I know your name please?

USER: Yes, I am Ashley  Roberts here.

ASSISTANT: Ashley, what are your planned travel dates?

USER: Sure, my travelling dates are 03/04 to 03/06.

ASSISTANT: Ok, can you please mention the source airport code?

USER: Yes, I want to travel from IAD.

ASSISTANT: Ok, please wait a while, I will revert you.

USER: Ok, make sure that the connection limit 1.

ASSISTANT: Sorry to inform you Ashley Roberts, there are no flights running on the dates you have provided.

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

ASSISTANT: You are welcome. Thank you for reaching our agency.