You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Hernandez.

ASSISTANT: How may I render you today?

USER: I need to my grand mother memorial at Denver, can you please help me in booking?

ASSISTANT: Sure. Could you please let me know your source and destination points?

USER: My source is at TX-AUS and destination is at CO-DEN.

ASSISTANT: Kindly share your planned travelling dates to proceed further.

USER: My planned dates are from 01/25 to 01/27.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

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

USER: Ok, no problem.

ASSISTANT: Thank you for availing us.

USER: Thank you.