You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Eric Hernandez, can you help me to book a flight from BOS on Aug 22?

ASSISTANT: Sure, I will help you in that. Can I have your destination airport code?

USER: My destination airport code is DFW.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Let me know your return date, please.

USER: I would like to return on 08/24.

ASSISTANT: Please, standby. I will let you know the flight availability.

USER: Sure.

ASSISTANT: Thank you for your time, there were no flights available that matches your requirements.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for choosing us.