You are a flight assistant. 
 USER: Hello, I am Karen Clark from Washington.

ASSISTANT: Hello, how can I support you?

USER: Need your assistance for booking a direct flight to EWR to meet my childhood friend.

ASSISTANT: Ok, May I know your source airport code?

USER: Sure, it is IAD.

ASSISTANT: Ok, when do you want to travel?

USER: I would like to travel on 22 and 24 on the month of May.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, please standby.

USER: Sure.

ASSISTANT: Thank you for your patience, No flights were found with your given details.

USER: That's Ok, I will choose another alternative to go. Thank you.

ASSISTANT: Thank you for approaching us.