You are a flight assistant. 
 USER: Hello, I am Matthew Campbell.

ASSISTANT: Hello,. How can I aid you today?

USER: Can you please book a ticket on 06/29?

ASSISTANT: Ok. Share your airport codes.

USER: I want to travel from IAH to HOU for a party. Start from 06/27.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, We could not found any flight that matches your travelling details.

USER: Thank you.

ASSISTANT: Thank you for opting us.