You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Daniel Taylor. I need to book a flight ticket from HOU to DEN, Can you please help me for booking?

ASSISTANT: Sure, I am perky to help you. Do you have any specifications?

USER: I need a connecting flight with fare of 1000.

ASSISTANT: Can I know your travelling dates please?

USER: I would like to travel on 03/15 to 03/17.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time. Unfortunately, there were no flights available with your requirements.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.