You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Adams.

ASSISTANT: How can I help you for the day?

USER: Please book a ticket from IAH to DFW, can you help me?

ASSISTANT: Sure Kevin Adams, I will help you with that. Can you please mention your travel dates?

USER: My travelling dates are on 09/04 and 09/06.

ASSISTANT: Do you need any halt  or a direct flight in between your journey?

USER: I need a connecting flight.

ASSISTANT:  How much fare are you expecting?

USER: I can afford up to 500.

ASSISTANT: There are no flights available as per your details.

USER: Ok, no issue.

ASSISTANT: You are welcome, thank you for reaching us.

USER: Thank you.