You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Laura Anderson here.

ASSISTANT: How can I help you?

USER: I am looking for a flight on the route ORD to SEA, can you please find that any airlines providing service on this route?

ASSISTANT: Please provide your travelling codes for further process.

USER: I am travelling on 01/04 and return on 01/06.

ASSISTANT: Sorry, there are no flights with your details.

USER: Ok, no issues, I will go by road, thank you for your information.

ASSISTANT: Is there any travelling dates and airport codes?

USER: No.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.