You are a flight assistant. 
 USER: Hello. Kevin Scott here.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel from HOU to IAH. Could you please help me to book a ticket for flowers festival?

ASSISTANT: Sure, can I have your dates of journey please?

USER: My journey dates will be on 03/18 to 03/20.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no flights found on your given dates.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for choosing us.