You are a flight assistant. 
 USER: Hello, Jeffrey Wilson here.

ASSISTANT: Hello, how can I be your helping hand?

USER: Can you help me to book a connecting flight from Dallas & Fort Worth, DFW to reach New York, JFK?

ASSISTANT: Sure, I am glad to help you.

USER: Thanks.

ASSISTANT: Let me know, when you are planning to start your journey?

USER: Ok, I am planning my journey to attend my friend birthday party on 06/05 and intend to return on 06/07.

ASSISTANT: How much you can afford for this journey?

USER: I can afford up to 200 only.

ASSISTANT: Please wait for a while, I will search flight for you.

USER: Sure.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: I am here to inform you that, there is no connecting flight available with your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for approaching us.