You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What can I do for you today?

USER: I would like to travel from Houston, TX - IAH to attend a board meeting at San Francisco, CA - SFO. Can you help me with it?

ASSISTANT: Sure, I am here to help you. Can I know your travelling dates?

USER: My planned dates of journey are 08/14 and 08/16.

ASSISTANT: Ok, please wait for a second, so that I will check your flight details.

USER: Ok.

ASSISTANT: Sorry to say that , there are no flight's available based on your travelling dates. May I know your name?

USER: That's ok, thank you for the response. My name is Amy Hill.

ASSISTANT: Thank you for contacting us.