You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking a flight ticket to SFO from IAD?

ASSISTANT: We are mirthful to help you. On which dates would you like me to book a flight ticket for you?

USER: My travel dates are from May 03 to May 05.

ASSISTANT: Do you need any connections between your trip?

USER: I need a connecting flight.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Sandra Campbell.

ASSISTANT: We have a connecting flight operated by Frontier Airlines with a fare of 100. Shall I book your seat in this flight-1024?

USER: You can proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.