You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket from LAX to DEN?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know when are you planning your trip?

USER: My travelling dates are from May 12 to May 14.

ASSISTANT: Do you have any specific airline preference?

USER: No.

ASSISTANT: Which class would you like to choose?

USER: I am comfortable with any class.

ASSISTANT: Are you flexible to depart and return any time?

USER: I am flexible with any time.

ASSISTANT: Is a connecting flight works for you?

USER: Yes, I need a flight with maximum connection of 1.

ASSISTANT: May I know your name to proceed further with the booking?

USER: My name is Mark Roberts.

ASSISTANT: We have a flight from Delta airlines, number 1009 and the price for this economy class ticket is 100. Shall I proceed with the booking?

USER: Ok, proceed.

ASSISTANT: Your ticket has been confirmed with a connecting flight.

USER: Thank you.

ASSISTANT: Thank you for reaching us.