You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to book flight ticket from IAH to LAS?

ASSISTANT: Sure, We are here to help you. Can I know your travelling dates?

USER: My trip dates are June 1 and June 3.

ASSISTANT: Do you need any break?

USER: Yes, I need a break for this journey.

ASSISTANT: May I know your name?

USER: Sure, I am Dennis Collins.

ASSISTANT: Is there any other specifications?

USER: I do not have any other specifications.

ASSISTANT: We found a connecting flight with an AA airlines, flight number:1009. Can I reserve it?

USER: You can reserve this.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.