You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need your help to book a flight ticket. Please help me.

ASSISTANT: Sure, can you please provide your journey dates?

USER: My planned travel dates are January 25 and 27.

ASSISTANT: Kindly mention your airport locations?

USER: DFW and IAH are my source and destination airport codes.

ASSISTANT: Do you have any specifications to be met?

USER: I wish to fly in a economy class flight.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Unites airlines, flight number-1019 class-economy and fare is 100. Shall I proceed with the booking?

USER: Yes, please.

ASSISTANT: Sure, your reservation has been done.

USER: My name is Christopher Johnson.

ASSISTANT: Thank you for providing name.

USER: You are welcome.

ASSISTANT: Thank you for opting us.