You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: My friend meet with an accident so, I want to book a ticket from DCA to DEN, can you help me?

ASSISTANT: On which dates you want to travel?

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

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: There is a flight available to DEN and the flight is provided by Hawaiian airlines. Shall I proceed for booking your ticket?

USER: Yes, please.

ASSISTANT: For reservation purpose, may I know your name?

USER: Myself Jennifer Baker.

ASSISTANT: Your ticket reserved successfully with name of Jennifer Baker.

USER: Thank you for booking.

ASSISTANT: It's my pleasure.