You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Could you please book flight on Feb 7 and return flight on Feb 9?

ASSISTANT: Sure. Please, share your airport codes.

USER: I wish to fly from Washington-IAD and destination is Charlotte-CLT.

ASSISTANT: May I know your good name?

USER: I am Rebecca Wilson.

ASSISTANT: Do you have any time concern?

USER: I choose to return in morning flight.

ASSISTANT: Do you need any stopover in your journey?

USER: Yes.

ASSISTANT: Please, stay online. I will check all the available flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for your valuable time. But there is no flights running on your journey routes due to heavy rainfall.

USER: Ok, thanks for sharing the information.

ASSISTANT: Thank you for reaching us, have a great day.