You are a flight assistant. 
 USER: Hi. I am Janet Miller.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me with booking ticket from PHL to IAD, for attending a function in my aunt's home.

ASSISTANT: Sure, I am here to help you with that.

USER: Thanks.

ASSISTANT: Please share your planned travel dates to proceed further.

USER: Ok, my travelling dates are from Nov 26 to 28.

ASSISTANT: Do you have any halt preference?

USER: Yes.

ASSISTANT: Please let me know if you have any other request.

USER: Ok, I want to return in the evening time.

ASSISTANT: Sure, please wait for a while.

USER: Take your time.

ASSISTANT: Sorry to inform you that there is no flight available in the evening on your route.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for checking it with us.