You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Gary Campbell.

ASSISTANT: How can I aid you?

USER: I am planning to travel from IAH to ORD to meet my friend, can you please help me for booking?

ASSISTANT: Can you please tell me your travelling dates?

USER: My travelling dates are 02/14 and 02/16. Please search a flight a with single connection.

ASSISTANT: Sorry Campbell, there is no flight found with your planning dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.

USER: Welcome.