You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Andrew Hill here. I want to book a flight ticket from IAH to DCA. Can you help me in that?

ASSISTANT: Sure, I am here to help you. Can you share me your trip dates?

USER: I will fly on Nov 29 and return on Dec 1.

ASSISTANT: Do you need any halt in your journey?

USER: I need halt in between journey.

ASSISTANT: Would you like to prefer business class or economy class?

USER: I need to travel in economy class.

ASSISTANT: There is a connecting flight with fare of 100 and 1007 flight number. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your seat has been reserved with Frontier airline in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.