You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Samantha Evans here.

ASSISTANT: Nice to meet you, Samantha Evans.

USER: Can you help me to make a flight reservation from IAD to meet my friend who was staying in JFK?

ASSISTANT: Sure. Could you please provide your planned travel dates ?

USER: Ok, I am planning to travel on these days that is on 04/18 and return on 04/20.

ASSISTANT: Sorry to tell you, there are no flights found as per your travel dates.

USER: That's ok, thank you for providing me the information.

ASSISTANT: Samantha Evans, thank you for reaching us.