You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a flight from DCA to DEN, can you help me in booking?

ASSISTANT: Sure, I am mirthful to help you. When are you planning to start and return?

USER: My planned travel dates are Aug 13 and Aug 15.

ASSISTANT: Ok, help me with your good name.

USER: Myself Emma Clark.

ASSISTANT: Do you wish to go in a connected flight or a direct flight?

USER: Please look for a connecting flight.

ASSISTANT: Is there any other concerns?

USER: I would like to return my journey for the morning flight.

ASSISTANT: Sorry to say that, no flights are found based on your information.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.