You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for the day?

USER: I am Larry Gonzalez. Could you please book a ticket to New York, EWR from Houston, IAH?

ASSISTANT: Sure, may I know your travelling dates?

USER: I want to fly out on 11/18 and intend to return on 11/20.

ASSISTANT: Please let me know if you need a connecting flight in between your journey routes.

USER: I prefer a connected flight in between my journey.

ASSISTANT: Please wait for couple of minutes, I will check the availability of flights and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there were no flights found from your source.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for approaching us.