Hello Mark Thomas here.
user
Hello. Mark, how can I assist you?
assistant
I need your help in booking the ticket from LGA to DFW.
user
May I know the travelling dates please?
assistant
My journey dates are from 07/29 to 07/31.
user
I'm sorry Mark, there are no flights with your requirements.
assistant
Ok, no issues. Thank you for your information.
user
Welcome.
assistant