You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

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

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are July 22 and 24.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your name?

USER: My name is Thomas Adams.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes. Thank you for availing us.

USER: No issues, thank you for your time.