You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I oblige you today?

USER: Can you please help me in booking my flight ticket from DEN to MCO?

ASSISTANT: Sure, when are you planning to start and return on?

USER: My planned travel dates are July 07-09.

ASSISTANT: Do you need a connecting flight?

USER: I prefer to fly in connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to travel in economy class.

ASSISTANT: Can I know your good name?

USER: Myself, Emily Mitchell. Can you please check for big branded airlines?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with the given details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you.