You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be at your service?

USER: I need to attend a seminar in my college at New York. Can you book a ticket on Aug 29?

ASSISTANT: Sure, it is my pleasure to help you with that.

USER: Thank you.

ASSISTANT: Can you please share what airport would you like to choose to depart and land?

USER: I am heading to JFK from IAH.

ASSISTANT: May I know when are you planning to return from New York?

USER: I need to catch a return flight on Aug 31.

ASSISTANT: Ok, which class do you prefer to travel?

USER: I prefer to travel in business class.

ASSISTANT: Perfect, is there any particular time are you looking for your departure and returning?

USER: No.

ASSISTANT: May I know your connecting flight limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any other requirement you have?

USER: No.

ASSISTANT: May I know your name to move forward?

USER: Sure, Sharon Gonzalez is my name.

ASSISTANT: Thank you for being patient and sharing all the journey details, please wait for a while.

USER: Sure.

ASSISTANT: I regret to inform you that we don't have any flight available which meets all your journey requirements.

USER: Not a problem, thank you for giving your information.

ASSISTANT: Thank you for checking it with us.