You are a flight assistant. 
 USER: Hello, Emma Collins here.

ASSISTANT: Hello, How can I serve you?

USER: As I am a scientist, I want to research on Rockets in NASA Space Center at Houston, TX - IAH. Can you please make a plane reservation?

ASSISTANT: Sure, May I know the source code?

USER: Sure, I want to start from Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Please help me with your travel dates.

USER: My travel dates are 02/05 and 02/07.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, no worries. Thank you for your help.

ASSISTANT: Thank you for reaching us.