You are a flight assistant. 
 USER: Hi. I am Kathleen Gonzalez.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to conduct a sports festival at Washington. Can you help me in my booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I will start my journey on 10/08. I will return on 10/10.

ASSISTANT: Can you help me with your airport codes?

USER: My source airport code is TX - IAH. My destination is DC - DCA.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Not an issue. Thank you for quick response.

ASSISTANT: Thank you for reaching us.