You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you aid me to book a flight ticket from IAH to EWR?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are June 11 and June 13 respectively.

ASSISTANT: Is there any connection limit?

USER: I want a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I choose business class flight to travel.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Shirley Adams here.

ASSISTANT: Sorry, no flights are available as per your requirements.

USER: Thank you.

ASSISTANT: Thank you for reaching us.