You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me in booking from LAS to IAH, as there is a musical concert to attend?

ASSISTANT: Sure, please share your planned trip dates?

USER: My journey dates are Feb 3 to Feb 5.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Any other requirements to be met?

USER: I am looking for a stopover flight which depart in evening.

ASSISTANT: May I know your name?

USER: Reserve under the name Thomas Parker.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.