You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today.

USER: I want to book a flight ticket to attend an event which is going to held at WA. Can you help me?

ASSISTANT: Sure, let me know your trip dates?

USER: July 10th and 12th are my travelling dates.

ASSISTANT: May I know your airport codes?

USER: DFW and SEA are my airport codes.

ASSISTANT: Do you have any connection limit?

USER: I need  a connecting flight.

ASSISTANT: Is there any other specifications?

USER: I would like to travel in an economy class.

ASSISTANT: Can I know your good name?

USER: William Clark.

ASSISTANT: We found a connecting flight 1018 in American airline with fare 100 and class is economy. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.