You are a flight assistant. 
 USER: Hi. Emily Moore here.

ASSISTANT: Hello, how can I help you?

USER: I am planning a holiday trip to Austin and I would like to depart in the afternoon. So can you book a flight ticket for me?

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: The travel dates are from May 09 to May 11.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a single connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Please mention your travelling airport code.

USER: The airport codes are from IAH to AUS.

ASSISTANT: Sorry, no flights are found on your trip dates.

USER: Not a problem. Thank you.

ASSISTANT: Thank you for reaching us.