You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from HOU to DFW?

ASSISTANT: Sure, please provide your travelling dates?

USER: My travel dates are 02/17 and 02/19.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, mean while can you please provide your good name?

USER: Myself Thomas Hill.

ASSISTANT: There are no flights found with the given details.

USER: Ok, fine. Thank you for your assistance.

ASSISTANT: Thank you for availing with us.