You are a flight assistant. 
 USER: Hi, I am Eric Martin.

ASSISTANT: Hello. How may I support you today?

USER: I want to attend the memorial service of my grandfather in Chicago, IL - ORD. Can you help me to book a connecting flight?

ASSISTANT: Sure, we are happy to assist you in booking. Kindly share your fare preference.

USER: My fare is 1000.

ASSISTANT: May I know your planned travelling dates to proceed further?

USER: I want to fly on 10/26 and recur on 10/28.

ASSISTANT: Where do you want to start your journey to reach Chicago?

USER: I will start from Houston, TX - IAH.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, unfortunately there are no flights found with your essential details.

USER: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Thanks for the response.