You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I have to visit Buffalo Bayou in Houston, can you please aid me to reserve a plane ticket from JFK to HOU?

ASSISTANT: Ok, I am glad to help you in the flight ticket booking process. May I know your itinerary dates?

USER: Thank you. My preferable itinerary dates are Sept 2nd and 4th.

ASSISTANT: May I know your name?

USER: My name is Barbara Lewis.

ASSISTANT: Do you have any class preference?

USER: I mostly prefer to travel in a direct flight, so please check the flight availability with this requirement. I didn't have any other preferences.

ASSISTANT: Ok, wait for a minute.

USER: Ok, take your time.

ASSISTANT: Sorry to say that, there are no flights available based on your travelling dates.

USER: It's ok, not a problem with that. I will choose some other source to travel. Anyways thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.