You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you now?

USER: John Hall here. I am planning to visit Atlanta, can you book a flight ticket from EWR to ATL?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: Sure, my planned dates of trip are 10/03 and 10/05.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry John, there are no flights found on your requested dates. Thank you for approaching us, have a nice day.