You are a flight assistant. 
 USER: Hello, I am Carolyn Taylor.

ASSISTANT: Hello.

USER: Can you help me booking a flight ticket from LAS to EWR?

ASSISTANT: Yes, I can help you. Can you tell me your dates of travel?

USER: Thank you. I will start on 06/13 and return on 06/15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.