You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: I want to take my student to NASA Johnson Space Center in Houston, can you help me to book a flight from New York?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you for that.

ASSISTANT: Ok, please provide your journey airport codes.

USER: I will board from EWR airport and will land to HOU airport.

ASSISTANT: Ok, May I know your travelling dates?

USER: I will travel on July 27th and July 29th.

ASSISTANT: Ok, Do you prefer economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Ok, Kindly mention your connection limit.

USER: As I cannot spend my time in transit please look for a direct flight.

ASSISTANT: Sure, please provide your airline preference.

USER: I would like to travel in any normal-cost airlines.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, No flights were found with your given details.

USER: Oh, it is a problem for me, but anyway thank you.

ASSISTANT: Ok, May I know your name for documentation purpose?

USER: Sure, Richard Wilson here.

ASSISTANT: Ok, Thank you for opting us.

USER: You are welcome.