You are a flight assistant. 
 USER: Hello. I am Kevin Davis.

ASSISTANT: Hello, how can I oblige you today?

USER: Please book me a ticket from BOS to EWR to meet my family.

ASSISTANT: Sure, when are you planning to depart and return on?

USER: I have planned to travel on 05/30 and 06/01.

ASSISTANT: Do you need a halt?

USER: I need a halt.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.