You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Christine Hill. I like to travel from HOU to ORD for an event, can you help in finding a flight?

ASSISTANT: May I know travel dates, Hill?

USER: I like to travel on 08/07 to 08/09.

ASSISTANT: Please wait a while. There is no flight available, Hill.

USER: That's fine. Thank for your help.

ASSISTANT: Thanks for contacting us.

USER: Thank you for your help.