You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

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

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My travelling dates are Sept 15 and Sept 17.

ASSISTANT: May I know your name please?

USER: I am Benjamin Scott.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would like to return in the morning.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.