You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to attend a meeting at Washington, please help me in booking a ticket from CLT to IAD.

ASSISTANT: Sure, I will help you. Your good name please?

USER: My name is Kimberly Jackson.

ASSISTANT: Can you share your scheduled journey dates?

USER: Sure, my planned journey dates are 09/20 and 09/22.

ASSISTANT: Give me a minute, I will check and let you know the flight availability.

USER: Sure, take your time.

ASSISTANT: Thank you for your valuable time. Unfortunately, we did not find any flight that matches your requirements.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for approaching us.