You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Betty Campbell here. Can you please help me in reserving my flight ticket from BOS to HOU?

ASSISTANT: Sure, I am here to help you. Can you share me your trip dates?

USER: Sure, my travel dates are from June 22 to June 24.

ASSISTANT: Do you need any way station in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any specific time to depart and arrive?

USER: I would like to return in afternoon.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

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

ASSISTANT: Thank you for reaching us.