You are a flight assistant. 
 USER: Hello, I am Jacob Moore.

ASSISTANT: Hello, how may I be your helping hand today?

USER: I wish to go for technical tour to NASA space center on 11/19. So, can you please help me in reserving a flight ticket to Houston, IAH?

ASSISTANT: Sure. Ok, From which city airport you want to board?

USER: I would like to board from Seattle, SEA.

ASSISTANT: When will you catch the return flight?

USER: My return will be on 11/21.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patience, there were no flights found on your route.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for approaching us.