You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Could you help me in booking a flight ticket from DCA to LGA?

ASSISTANT: Sure, We are here to assist you. Can I know your travelling dates?

USER: I want to fly on Mar 21, return on Mar 23.

ASSISTANT: Do you require  any break?

USER: I want a flight with one connection.

ASSISTANT: Can I know your name?

USER: My name is Christine Parker.

ASSISTANT: We found a connecting flight with Spirit airline, flight number:1004.

USER: May I know the depart time?

ASSISTANT: It's evening at 23PM.

USER: I want morning flight.

ASSISTANT: Ok, Please give me a minute I will check and get you back.

USER: Ok.

ASSISTANT: Sorry to inform you, currently no flights are running at that time due to abnormal weather conditions.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.