You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am John Edwards, can you help me to book a flight from HOU to IAH?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates are 06/16 and 06/18.

ASSISTANT: Do you have any class preference?

USER: No, I need normal cost airline. Please book a connecting flight.

ASSISTANT: John Edwards, I am sorry to inform you that there is no flight available at your request.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.