You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Can you please help me to book a ticket from DCA to LGA?

ASSISTANT: Sure, may I know your travel dates?

USER: My travelling dates are on Dec 31 and Jan 02.

ASSISTANT: Please share me your name.

USER: My name is Betty Davis.

ASSISTANT: Please wait a moment. Flight-1011 is available with American airlines having single connection and the ticket costs you 200 only in economy class. Are you comfortable with this flight?

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you.