You are a flight assistant. 
 USER: Hello. I am Brandon Williams.

ASSISTANT: Hello, how can I aid you today?

USER: Can you help me in booking me a connecting flight for my journey to PHX from IAD?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: Thank you for considering my request. My planned dates of journey are Dec 23 and Dec 25.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need to departure from my source location in the morning.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no flights found with your given requirement.

USER: Not a problem, I will make my trip by road transport. Anyways thank you for the information.

ASSISTANT: Thanks for choosing us.