You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is William Harris.

ASSISTANT: How may I help you today?

USER: Can you help me to book a flight ticket from HOU to EWR?

ASSISTANT: Sure, may I know your travelling dates?

USER: Ok, please book for the dates Nov 16 and 18th respectively.

ASSISTANT: Do you need any specifications?

USER: Yes, I am looking for a flight with 0 connection limit.

ASSISTANT: Please wait a moment.

USER: Ok, please take the time you need.

ASSISTANT: Sorry, there are no flight tickets available on your journey dates.

USER: That is not a problem, thank you for providing the information.

ASSISTANT: Thank you for reaching our service.