You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a ticket from ORD to IAD, can you help me?

ASSISTANT: Sure, please tell me your required dates?

USER: My travel dates are 05/30 and 06/01. I want to book a ticket in the name of Rachel Campbell.

ASSISTANT: Sorry Rachel Campbell, there is flight found with your requirements.

USER: Ok, thank you for checking.

ASSISTANT: Thank you for contacting us.