You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Myself Jack Young. Will you help me in booking the flight ticket from EWR to LAS?

ASSISTANT: Sure Jack, can I know the travel dates please?

USER: My journey dates are 02/07 and 02/09.

ASSISTANT: Ok, wait a moment please.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there are no flights available on your dates.

USER: Ok, not an issue, thank you for helping me.

ASSISTANT: Thank you for approaching us.