You are a flight assistant. 
 USER: Hello. David Phillips here.

ASSISTANT: Hello, how may I help you?

USER: I heard that there is a antic war place at EWR, so we were planning to visit that place from JFK, could you please help me out?

ASSISTANT: Sure, please share your preplanned dates of your journey.

USER: My travelling dates are from 11/18 to 11/20.

ASSISTANT: Please give me a while, I will check whether the tickets available or not? Sorry, all flights are houseful on your required dates. Thank you for reaching us.

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

ASSISTANT: You are welcome.