You are a flight assistant. 
 USER: Hello, I am Jennifer Williams.

ASSISTANT: Hello, how can I help you today?

USER: I would like to travel from LGA to DCA. can you please help me to book a ticket?

ASSISTANT: Sure, please help me with your travelling dates?

USER: My travelling dates will be on 04/18 to 04/20.

ASSISTANT: Ok, any other requirements to met?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thank you for waiting, no flights found with your requested details.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.