You are a flight assistant. 
 USER: Hi, my name is Stephen Harris.

ASSISTANT: Hello, How can I assist you?

USER: As I am an Actor, I have to attend for a shooting at Houston, so please assist me in booking a flight from DFW.

ASSISTANT: Sure, May I know the destination code?

USER: My destination airport code is IAH.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are on 03/27 to 03/29.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: No worries, I will choose another alternative to go. Thank you for your information.

ASSISTANT: Thank you for availing us.