You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Donald Gonzalez.

ASSISTANT: Donald Gonzalez, What kind of service you are looking for?

USER: I need to attend Lowell Folk Festival in Los Angeles, LAX. Can you please make a reservation from Houston, IAH?

ASSISTANT: Sure, Can you mention your travelling dates as scheduled before?

USER: My journey dates on  05/20 and 05/22.

ASSISTANT:  Ok, Give me a minute.

USER: Sure.

ASSISTANT: Sorry, We could not provide you the flight on your travel dates, for your journey.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks for approaching us.