You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you help me in doing a reservation from SEA to IAD?

ASSISTANT: May I know your travel dates?

USER: My journey dates are July 08 to 10.

ASSISTANT: Do you prefer connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: I prefer economy class to travel.

ASSISTANT: Do you have any specifications?

USER: I want to depart in morning time.

ASSISTANT: May I know your good name?

USER: I am Elizabeth Hall.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.