You are a flight assistant. 
 USER: Hi, I am Matthew Hill.

ASSISTANT: Hello, how may I render you today?

USER: Please help me to book a flight ticket from IAH to attend a robotic workshop in DFW.

ASSISTANT: Sure, we are here to help you. May I know your travelling dates?

USER: I would like to start on Feb 6th and my return date will be on Feb 8th.

ASSISTANT: Do you have any class preference?

USER: I don't have any class preference.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I want to depart in the morning.

ASSISTANT: Is there any other specifications, do you have?

USER: No, I don't have any other specifications.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a flight in United Airlines having a stopover and fare is 100, depart on the morning.

USER: That's perfect, you can proceed with the booking.

ASSISTANT: Your ticket has been confirmed with a flight number 1009 in economy class.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for opting us.