You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Timothy Lopez here, I am looking to travel in direct flight from SEA to DEN, can you avail me a ticket?

ASSISTANT: On which dates you want to travel?

USER: I want to travel on 03/07 and 03/09.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no flights found with your requirement.

USER: Ok, no issues. I will go by road.

ASSISTANT: Ok. Thank you for reaching us.

USER: Thank you for giving a try to help me.