You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Scott Davis.

ASSISTANT: How may I aid you today?

USER: Will you help me in booking the flight ticket from PHL to IAD?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My preferable journey dates are 06/13 and 06/15.

ASSISTANT: Please wait for a minute.

USER: Ok, I will wait for your response.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.