You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you please help me in booking a flight ticket to DCA from LGA on the name of Nancy Davis?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: Can you please forward your journey dates that you wish to travel?

USER: My journey dates are from Jul 08 to Jul 10.

ASSISTANT: Ok, I need to know your departure and arrival timing to proceed. Please can I know?

USER: I would like to return in the morning.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Thanks for your details, there are no flights available at this moment matching your particulars.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for contacting us, have a great day.