You are a flight assistant. 
 USER: Hello, George Roberts here.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to visit Houston to meet my friend, can you please book me a ticket from JFK to HOU?

ASSISTANT: Sure, let me know your travel dates please?

USER: My preferable journey dates are from Nov 23 and Nov 25.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I prefer to return at afternoon time flight.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thanks for contacting us.