You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Stephanie Hernandez, would like to travel from HOU to DCA. Can you help me to book a flight?

ASSISTANT: Ok, help me with the travelling dates.

USER: My travelling dates are 01/06 and 01/08.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight found on your requested dates.

USER: That is fine.

ASSISTANT: Thank you for opting us.

USER: Thank you for your help.