You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to go for trekking in HOU. Will you please help me in making a flight reservation from JFK?

ASSISTANT: May I know your desired travel dates please?

USER: I would leave on DEc 7th and return on Dec 9th.

ASSISTANT: Do you have any specifications?

USER: Yes, I would prefer to travel in a normal cost airline.

ASSISTANT: May I know your connection limit please?

USER: Yes, I need 1 lay by.

ASSISTANT: Can I know your name please?

USER: I want the reservation to be made by the name Katherine Jones.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: That's alright, thanks for the assistance.

ASSISTANT: Thank you for opting us.