You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Mary Garcia.

ASSISTANT: How may I aid you?

USER: Can you book a flight ticket from Seattle, SEA to attend a seminar on 05/24?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you have planned to catch the return flight?

USER: I will be return on 05/26.

ASSISTANT: Can I have your destination airport code?

USER: I want to land at Houston, IAH.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time.

USER: Ok.

ASSISTANT: We found a connecting flight of Frontier airline with fare 100. Shall I confirm it?

USER: Ok, You can confirm.

ASSISTANT: Your ticket has been reserved with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for opting us.