You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a ticket from MSP to IAH to attend workshop, can you help me in booking?

ASSISTANT: Sure, I am here to help you. May I know your itinerary dates?

USER: I am departing on Nov 14 and return on Nov 16.

ASSISTANT: Do you prefer a direct or connecting flight?

USER: I prefer to travel in connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I do not have any other specifications.

ASSISTANT: May I know your name?

USER: My name is Ryan Martin.

ASSISTANT: Sorry Ryan Martin, no flights are available on your planned dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.