You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you today?

USER: I am looking for a flight from Boston, can you help out in booking the flight ticket from BOS to IAH?

ASSISTANT: Sure, please share me your trip dates.

USER: My trip dates are from June 8th till June 10th.

ASSISTANT: Is there any class preferences for you?

USER: No, I need a normal-cost airlines.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I am looking for a connecting flight.

ASSISTANT: Please share me your other preferences.

USER: No.

ASSISTANT: For booking, we need your good name. Please provide it.

USER: Myself Stephen Gonzalez.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: That's ok, not an issue. Thank you for your information regarding flight availability.

ASSISTANT: Thank you for availing us.