You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Samuel Young. I would like to travel from IAH to LGA. Can you please help me to book a ticket?

ASSISTANT: sure, we are happy to help you. May I know your travelling dates?

USER: My travelling dates will be on July 5 to July 7.

ASSISTANT: Ok, do you need any halt in between journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Is there any specifications for you?

USER: No, I am comfortable with any flight.

ASSISTANT: Thanks for providing details, we are sorry to inform you that, no flights are available on your journey routes.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.