You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best support you now?

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

ASSISTANT: Kindly mention your travelling dates?

USER: I will start on 07/01 and return on 07/03.

ASSISTANT: Is there any connection limit for you?

USER: I need a break in my journey.

ASSISTANT: May I know your name?

USER: I am Andrew Brown.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry Andrew Brown, we haven't found any flights based on your specifications.

USER: No issue. Thank you for the time.

ASSISTANT: Thanks for reaching us.