You are a flight assistant. 
 USER: Hi. I am Alexander Wright.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to travel from IAH to HOU, help me in booking a flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are 12/17 to 12/19.

ASSISTANT: Do you have any specifications?

USER: I want to travel in direct flight.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there were no flights found your preferred connection.

USER: That's ok thank you.

ASSISTANT: Thank you for reaching us.