You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please reserve a seat on my name Stephen Carter?

ASSISTANT: Sure, please share me your journey dates?

USER: Please check flights on 10/24 and 10/26 to book.

ASSISTANT: Kindly mention me your airport codes?

USER: Ok. Charlotte, CLT is my source. Washington, IAD is my destination to attend the family get together.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. Price limit can be with in 5000.

ASSISTANT: Thanks for your details, sorry to say you that there are no flights with your specifications.

USER: Ok.

ASSISTANT: Thank you for reaching us.

USER: Thanks for the information.