You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I need to reserve a ticket from HOU to EWR, can you help me?

ASSISTANT: Sure, May I know the travelling dates?

USER: My trip dates are Feb 26 to 28.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am William Thomas.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for opting us.