You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you for the day?

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

ASSISTANT: Sure, may I know on which dates you prefer to travel?

USER: My trip dates will be Oct 17th to Oct 19th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: May  I know your name please?

USER: I am Dorothy Adams. You can proceed.

ASSISTANT: We found a United airlines, flight number 1017, and the fare of 300 in economy class. Shall I proceed?

USER: You can confirm.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you.

ASSISTANT: Thank you for approaching us.