You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to do research at Dallas, please help me in booking a ticket from IAH to DFW.

ASSISTANT: Can I know your travelling dates?

USER: My planned travel dates are on Dec 12 and Dec 14.

ASSISTANT: Do you have any class preference?

USER: I am fine with any class.

ASSISTANT: Is there any specifications?

USER: I need a direct flight for my trip.

ASSISTANT: Ok. Please let me know your name?

USER: My name is Rachel Smith.

ASSISTANT: Found direct flight with Frontier airlines for price 100. Shall I book a ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is booked in an economy class having flight number 1024 which departs at 13:00 hours and arrives at 2:00 hours.

USER: Thank you for your help.

ASSISTANT: Thanks.