You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Dennis Johnson, can you help me to book a flight from IAH to DEN?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are 07/11 and 07/13.

ASSISTANT: May I know in which class do you prefer to travel?

USER: No, I want to return at morning flight from DEN.

ASSISTANT: Ok, please let me know if you have any other specifications.

USER: I want a single connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: UA airlines is providing a flight on that route with ticket fare of 300 and 1 connection, it's departure time is 7 AM and arrival time is 9 AM. Shall I proceed for booking?

USER: Proceed with booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1010, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.