You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a flight ticket from BOS to HOU. Could you help me in booking?

ASSISTANT: Sure, may I know your name please?

USER: Brenda Garcia.

ASSISTANT: Can you please share yuor travelling dates?

USER: My travelling dates are from Dec 26 - 28.

ASSISTANT: Is there any connection preference?

USER: I prefer for connecting flight.

ASSISTANT: Do you have any other specifications?

USER: My depart and return time should be in the afternoon.

ASSISTANT: May I know your name please?

USER: Brenda Garcia.

ASSISTANT: Brenda Garcia, there are no flights available in your route with your preferences.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.